trek fuel ex 5 dropper post

2024 BUDGET BIKE ROUNDUP

Trek fuel ex 5 gen 5 review.

Words by Travis Reill  |  Photos by Dusten Ryen & Brian Niles Sponsored by Leatt & Tifosi Optics

With trail bikes in Trek’s lineup reaching five-digit prices, it is nice to see the industry giant offer a full-suspension trail bike that doesn’t break the bank. Trek was kind enough to send us the Fuel EX 5 to ride and review in our budget-bike shoot-out. At just under $2,500, the Fuel EX 5 is one of the most expensive bikes on test. We were excited to get the Fuel EX 5 out on the trails and see how it stacks up against the others in our test bike group.

• 130mm single-pivot ABP • Flip-chip adjustable geo • HTA 66.5 (high setting) • STA 75.5 (high setting) • REACH 475 (Large, high setting)

Big-brand Security

Highest Quality Frame On Test

WE DON’T

Short dropper post

Wide, Heavy wheels

Least Pedaling Support Of The Group

ABOUT THE TREK FUEL EX 5

Many of us are familiar with Trek’s trail-busting Fuel EX line. The Gen 6 Fuel EX saw added travel – not to mention a new frame design – but that doesn’t mean there isn’t room for the shorter-travel younger sibling out on the trails. With 140/130mm of travel and relatively moderate geometry, the Trek Fuel Gen 5 has been a trail bike many have reached for years.

FRAME AND FEATURES

Trek’s Fuel EX 5 features Alpha Platinum Aluminum. Trek boasts their aluminum “is continuously cold extruded and butted at multiple points, and hydroformed into sophisticated tube shapes for maximum strength and minimum weight.” The Fuel EX also has Trek’s Knock Block headset system, which prevents the handlebars from hitting the top tube and causing damage in a crash. Cables are internally routed, and the frame is offered in two color options: black, or the black and yellow we received.

The Fuel EX is offered in seven sizes, from XS to XL. X-small and small frame sizes come with 27.5-inch wheels and a pronounced dip in the top tube to help with standover height. Sizes medium and up are all equipped with 29-inch wheels. If you are familiar with Trek’s sizing, you will know that they also offer a medium/large size for those in between the two sizes. This is the only “in-between” size offered.

Trek’s Mino Link allows you to change the Fuel EX’s geometry. Switching from high to low will slacken the bike by 0.5°, drop the BB by 6mm, and shorten the reach by 5mm. While the bike comes with a 140mm travel fork, Trek gives allowance for bumping up to 150mm to improve descending capability.

The Fuel EX is essentially a linkage-driven single-pivot with one key difference—a pivot at the rear axle. Trek calls this their Active Braking Pivot (ABP) design. On most suspension designs, braking is considered to negatively impact the rear suspension’s ability to absorb impacts and provide traction. Trek’s ABP design aims to allow the rear suspension to remain more active under braking forces.

The Fuel EX 5’s geometry remains relatively moderate compared to today’s trail bike trends. For clarity’s sake, I’ll share the geometry in the “high” setting of the geometry-adjusting Flip Chip. The head tube angle is 66.5° and is paired with a 75.5° seat tube angle. The Stack Height ranges from 559mm to 623mm and Reach lengths range from 400mm to 500mm. Our size large came in at 609mm and 475mm respectively..

The BB height is 341mm in X-small and small, then 346mm for medium and up. Similarly, the BB drop is only 14mm below the axles on the two smallest sizes, and 28mm on sizes medium and up to account for the larger wheels. 436mm chainstays feature across all sizes. Our size Large Wheelbase totalled 1211mm.

BUILD SPECS

For the Fuel EX 5, Trek only offers two build options: a higher-end, 9.8 AXS Gen 5 and the budget-friendly EX 5 they sent us at $2,499. Leading the charge on our test bike was a Rockshox Recon Silver with the Motion Control damper and lockout. In the rear, there was a X-Fusion Pro 2 shock with “open” and “climb” positions.

The drivetrain is a complete Shimano Deore M6100 12-speed build, with Shimano’s 10-51 tooth cassette and a 30-tooth chainring. Shimano also handles the brakes, with 2-caliper hydraulic stoppers and 180mm rotors. 35mm width Alex MD35 wheels are laced to Bontrager hubs, and roll on wide 2.6 Maxxis Rekons. Bontrager makes up the rest of the build with tires, cockpit, and saddle—with the exception of a TranzX dropper post at a short 130mm drop length.

With a brand name as large as Trek, our expectations with the Fuel EX 5 were reasonably high. Even with a more budget-friendly component build, we figured Trek’s proven platform would shine through, regardless of the parts hanging from the frame.

When we tested the Trek Fuel EX 5 on the trails, we found it best suited for riders looking to put in miles. Its very moderate 66.5° headtube angle—the steepest of any of the bikes on test—puts the rider’s body more toward the front of the bike. This allows for a comfortable pedaling position, especially on climbs, which the Fuel EX 5 did reasonably well on. That forward-heavy position also provided good handling on the relatively techy bits of the climbs.

Even with a steeper headtube angle, the Fuel EX 5 wasn’t overly twitchy on faster descents. With 130mm of rear travel, it tackled some rough and chunky trails reasonably well, but finding its limit was quite easy for our aggressive riding crew. It also jumped decently, although the suspension had been firmed up quite a bit. This was done out of necessity, to add support to prevent harsh bottoming out on harder hits. Less aggressive riders looking for a more conventional light-duty trail bike may not feel the need to do the same.

One thing that seemed to hold the Trek Fuel EX 5 back while descending was the dropper post. Our size large EX 5 came with a 130mm dropper, a much shorter length than we’re used to for a size large frame. This meant having quite a bit less post insertion to get proper saddle height for climbing. When it was time to point the EX 5 downhill, the seat, even when dropped all the way down, was high enough between your legs to make handling the bike uncomfortable.

Initially, the expectation was that the Trek Fuel EX 5 might be the most efficient and best pedaling bike on test. However, we found that this wasn’t the case once we hit the trails. The bike’s geometry teased that as the case, but something seemed to be holding it back. After several of our testers spent considerable time on the Fuel EX, we concluded that the rolling weight of the wheels made the bike seem sluggish. We’re not sure why a trail bike is spec’d with 35mm inner width rims, but that, combined with 2.6 width tires, surely hurt the Trek’s performance when it came to rotational efficiency.

As with many of the other budget bikes in the field, the suspension and brakes were also where the Trek Fuel EX 5 came up short. The Fuel EX 5 shared the same suspension, and many of the same issues, as the GT Sensor Sport. The fork and shock both seemed sticky, and there were very few adjustments. The air pressure X-Fusion recommended for me (Travis) essentially turned the bike into a hardtail. When I let air out to get an appropriate SAG, the shock bottomed out hopping off a curb. Regarding brakes, the Shimano 2-pistons performed better than some of the other brakes on the budget bikes, but they still left us wanting a bit more power.

The Wolf’s Last Word

Price: $2,499.99 Website: Trekbikes.com

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Trek Fuel Ex 5 Review and Buying Guide

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High value, high performance, and impressive versatility– those are three features many would love to see in a mountain trail bike. But does Trek Fuel Ex 5 hold up to its marketing in a review– or are there better options?

Trail mountain biking is nothing new. But in the past decade, trail mountain biking has steadily grown from a niche activity to one loved by many. You only need to look at 2020 mountain bike riding statistics to get a picture of just how impactful trail biking has become and what it means for many. 

Trail riding is unsurprisingly the most popular of all types of mountain biking , including enduro, downhill , and more. In a survey, over 92 percent of cyclists participated in the trail ride, a little over 56 percent in enduro, and 30 percent in downhill in 2 years. 

But what’s driving so many to hit the trails? Trail riding is the most accessible for new riders, requires less heavy-duty equipment, and poses a lower risk of injury vs something like downhill riding. Mountain biking of all forms is a means of exercise, exposure to fresh air, and enjoying the community. 

But even though the survey also indicated mental health benefits– with over 92 percent of respondents saying cycling helps balance negative emotions–there remains a barrier. Mountain biking is expensive, and not everyone can afford the equipment. But even if you can, you don’t want to overspend– and you also want to find a bike that will provide a smooth, stable ride.

That’s why I want to look at Trek Fuel Ex 5 , a trail bike that claims to be of great value. This guide will tell you my selection criteria for finding the best trail bike and review how Trek Fuel Ex 5 compares.

Fuel EX 5 is a full-suspension trail bike that's ready to handle it all. The Fuel EX 5 hits the mark as a high-value, high-performance mountain bike with exceptional versatility.

Table of Contents

Main Pros and Cons Trek Fuel Ex 5

• High-Quality Hydraulic Brakes
• 140 mm Width Travel
• Quality Performance Saddle
• Fluid 12 Speed Gears
• Wide Range of Sizes
• Dropper Post
• Angled Straight Top Tube
• Heavy For Aluminum Frame
• Tires with Low TPI
• Single Drive Chain
• More Expensive Than Some Entry Trail Bikes

What is trail mountain biking?

When you think about mountain biking, you may picture steep inclines and declines and even jumps. But in between that rigorous biking and road biking is trail mountain biking. Trail riding is a general term that encompasses off-road riding.

Dirt and grass path away from a hectic life. Unlike with road biking, you’re not going to encounter cars– though you could encounter other cyclists if you pick a popular TRS that are most common, and they may feature twists, turns, and inclines or declines– but that isn’t the main focus.

The concept of trail riding is providing timail. You’ll contend with various terrain, and trail mountain biking is more challenging in terms of technique and balance– but also slower than road cycling. 

Is mountain biking a better workout than road biking?

Whether or not mountain biking is considered a better workout vs road biking, as you can imagine, is somewhat a matter of perspective. That is: how do you define a good workout? For some, it’s calories burnt. Others are worried about muscle gains or enjoyment.

All of these, and, of course, cardiovascular fitness, are valid factors. Mountain biking is more ideal for muscle development and a full-body workout. You’ll use more upper body strength, while road riding is mostly focused on lower legs and cardiovascular endurance. 

You can cover more ground more quickly road cycling, but the ground you’re covering riding on trails is more challenging. Holistically, mountain biking is considered a slightly better workout– with the added advantage of scenic and quiet locations. Still, road biking can be an excellent workout if you enjoy it more or if that’s simply what you have access to. 

Do I need a trail bike?

The first step is to assess whether or not you need a trail bike. Chances are if you’re considering a trail bike, it’s for good reason. If you already have a road bike it may be tempting to take it out on a trail- but that’s not a good idea. While bike categories may seem arbitrary, they exist for a reason.

Road bikes are typically made with a lightweight aluminum frame or other lightweight material, slim tires, and dropped geometry. A road bike is designed to reduce friction and optimize speed– so it’s not going to hold up well on uneven terrain. Road bikes simply don’t provide the traction and control you need for trail riding.  

What is the difference between a trail bike and a mountain bike?

Mountain bike is an umbrella term for many types of bikes. A trail bike is a form of a mountain bike, so it’s a misnomer to say the two are different. So instead, I want to take a look at specific bike types and how they compare with a trail bike. 

What is the difference between enduro and trail MTB? 

Enduro mountain bikes are hardy bikes designed for downhill riding. They’re notable for their long travel and also accelerate at steep inclines. Enduro bikes are bulkier than general trail mountain bikes but are also more efficient, designed for trail racing competitions. You should get an enduro if you plan on racing or want to take on steep descents and inclines.

If you just want to ride recreationally on moderate trails, a trail bike will save you money, storage space and is a bit easier to learn how to ride.  All-mountain bikes are included in the general category of enduro (which refers to racing), so the differences between trail and all-mountain bikes are the same as for enduro. 

What’s the difference between a trail bike and a motocross bike?

Motocross bikes have a very specific purpose. These bikes are a form of a motorcycle and are ridden on muddy tracks with controlled conditions. Not only are they motor-operated, but they also feature bulky tires and handlebars and are bulky.

Dirt bikes are in between– nonmotorized bikes meant to tackle muddy conditions with knobby tires and a heavy frame. Trail bikes are far lighter and a bit more versatile, meant to tackle different trial types, and also designed for riding in fair to moderate conditions. 

What’s the difference between XC and trail?

XC, or Cross Country , is a popular mountain bike type known for its versatility. XC bikes are ridden on trails and roads, making them a great crossover bike– though they’re more efficient on trails and not meant as a replacement for road bikes. It depends on the model you’re looking at.

Still, XC bikes are more lightweight and accelerate more easily than your average trail mountain bike. XC bikes are used for tortuous paths, but they’re not equipped for climbing or descending as much. XC bikes are used more for racing, while trail bikes are used for general rides and focus on control and greater shock absorption. 

What is a trail bike good for?

A trail bike is the most popular type of mountain bike for a good reason. It’s less specialized than other mountain bikes and can be used for most trails. Trail bikes can climb up or descend, though they aren’t intended for racing or especially steep inclines and declines or as inclement weather. Think of a trail bike as a recreational bike that’s harder than a road bike and offers more stability than a racing XC bike. 

Can you jump a trail bike?

Technically you can jump just about any bike, but there are bikes designed for jumping. Trail bikes are not a great option for jumping, as they don’t have the acceleration and inertia to get much air. And while they offer control, that control isn’t designed for performing jumps. At most, you could do some modest jumping. If your main objective is to find a bike for jumps, I recommend a dirt bike. 

Can I take a trail bike to a bike park?

While trail bikes are more versatile than some mountain bikes, they aren’t designed for road or bike parks. Trail bikes do perform at their best on trails. 

Can you use a trail bike for downhill?

Trail bikes climb and descend efficiently. They offer control, but they’re not meant for the very steepest trails, nor are they designed for purely downhill biking. The key here is to understand that trail bikes value control over speed.

You can’t expect to do downhill racing, but a good trail bike can handle inclines and declines. 

How do I choose a trail bike? ( My Buying Criteria)

If you’ve decided that a trail bike is the right type of bike for you, make sure that you find a bike that’s going to last and provide stability. Before I review Trek Fuel Ex 5, here’s a succinct guide to my selection criteria for finding a great trail bike. 

What trail mountain bike size should I get?

Determining the right size is important for comfort and control, but it can also be tricky. Different brands have different sizing standards. Smaller frames or sizes may vary from manufacturer to manufacturer, so the best idea is to refer to that brand’s sizing guidelines. Click Here for Trek Mountain Bike Sizing . 

How important is bike standover height and the top tubes?

Another sizing consideration is the standover height. A bike’s standover height refers to the length of the top tube to the ground and most commonly included within sizing information. This is important and also can lead to a better fit.

A standover height that’s too great can risk injury, while a too short height can leave you feeling cramped. For straight handlebars, I recommend an inch to two inches of clearance

. This provides a good fit and proper visibility. A sign a bike is too small is if you’re sitting on the bike and easily able to touch the ground with your feet.

Is a 27.5 or 29er tire better for a trail bike?

For the tire size, your most common options are a 27.5 vs a 29er. Both are fine, but I mean more towards a 29er for a trail bike. A 27.5 tire is generally more efficient at accelerating, but a 29er is going to provide a bit more traction and control.

But size isn’t the only factor in finding the best tire type. A dual compound improves durability. You’ll want a tread pattern that offers grip and traction for turning corners and some sidewall support. Puncture resistance is ideal for trail riding too. 

What material is best for trail cycling?

You’ll have an option of aluminum, carbon, steel, and titanium for most mountain bikes. Of these, I’d recommend carbon the most for a trail bike. While titanium is a bit smoother and lasts just as long, it does get quite pricey, and may not be necessary for a trail bike.

Carbon is lightweight and, unlike steel, not prone to corrosion. Aluminum is attractive for being lightweight and budget-friendly– but I’d prefer aluminum for something like a road bike, as it’s more prone to damage. 

How many gears should a trail bike have?

Considering that mountain bikes can have up to 40 gears, it can feel like you need as many gears as possible, but that’s not the case. For a solid trail bike, I recommend around 20-27 gears.

This provides more control and versatility- needed for trail riding– but doesn’t require you to search long and hard and pay top dollar. Aside from the number of gears, also pay attention to the type of gears.

You’ll also have the option between single, double, and triple drivetrains. 

Of these, I recommend a double drivetrain. It’s a nice balance for a trail bike. You’ll have situations where you may need more than a single, but you also aren’t using a trail bike the same way you would an enduro bike. 

Are disc brakes better on a trail mountain bike?

Between disc brakes and rim brakes, I recommend disc brakes for trail bikes. They’re smoother, more reliable, and less likely to become damaged when riding on trails. Some even consider a bike on a trail without disc brakes to pose safety hazards– I’d consider this feature nonnegotiable.

But you will need to decide between mechanical vs hydraulic brakes. Hydraulic brakes use fluid for stopping power, while mechanical brakes are purely based upon traditional brake chain force. Hydraulic brakes tend to be smoother and more expensive, and they’re quicker to respond.

I prefer hydraulic brakes for a trail bike, especially if you get caught in inclement weather. That doesn’t mean mechanical brakes are bad– they’re just not as efficient. 

Is a hardtail mountain bike good for trails?

Full suspension tech is better for a trail bike if you have the money, though you can argue it’s not a must-have. With the full suspension, you’ll get both rear and front shock, equipping the bike with greater traction, steering control and making for a more comfortable ride for bumpy trails

. You’re adding weight and cost, but for many, those trade-offs are well worth it, especially since trail bikes aren’t intended for racing and quick acceleration. With a hardtail, you have a rear shock and a lighter setup. If you opt for a hardtail bike, I recommend sticking to even trails. If you’re doing fairly light trail riding, a hardtail may be just fine. 

How much travel do you need for trail riding?

Bike travel is measured to determine the distance from the front or rear suspension that will absorb force. Thus, the greater the travel, the more shock resistance.

Bikes with greater travel may not accelerate as quickly, but they provide a smoother, more controlled ride for uneven trails. 100mm is the minimum I’d go, but 120mm to 130mm is a great range.

Above 140mm isn’t necessary for a general suspension trail bike. 

How much is a trail bike?

As you can imagine, the price of a trail bike ranges depending on materials, construction and brand. Trail bikes are more expensive than road bikes, but they’re also less expensive than something like an enduro bike.

You’re unlikely to find a trail bike that quality features for under $1,500, but spending a bit more leaves room for some great upgrades. 

Are dropper seatposts worth it?

Dropper posts are sometimes used for mountain bikes to provide greater adjustments than your Seatpost. This can provide greater visibility and comfort, and for some avid cyclists, it’s worth it. However, for a trail mountain bike, it’s not usually necessary. 

How do I choose the right mountain trail bike seat?

There is no perfect saddle for a trail bike seat, as we all have different bodies and different personal preferences. There are three general categories for mountain bike saddles: performance, racing, and recreation.

Since trail bikes aren’t used for racing, opt for a recreation saddle, or a performance saddle if you like a little versatility. You’ll want some cushioning and shock absorption, with gel offering the best cushioning and foam second.

A synthetic material like nylon that’s weather-resistant is wise for a trail bike. A center cut-out will provide a lighter profile and some breathability. Still, a saddle without a cut-out has more overall cushioning. 

What is Trek known for?

Now that you know my criteria for finding the best trail bike, I want to examine Trek as a brand. If you’ve considered buying a mountain bike before, chances are you’ve heard the Trek name, and for a good reason. Trek is one of the most popular makes for mountain bikes of all kinds.

Trek is also known for its wide selection of entry-level bikes, which some competing brands don’t offer to the same extent. That is of course tied to the fact that Trek is the largest US-based cycling company. The Roth Distributing Company owns Trek. 

Where are Treks made?

Up until 2017, Trek bikes were all manufactured and shipped from Waterloo, Wisconsin. Now they outsource some of their manufacturing to Asian countries, so none of their bikes are fully made in the United States. 

Is Trek a good movie?

Trek retains its reputation as a solid brand for entry-level and more specialized mountain bikes. One way they’ve done so is by staying on top of new biking technologies while still offering bikes at an accessible range of prices. Their diverse inventory and willingness to improvise both highlights why Trek bikes remain well regarded and popular. 

How long does a Trek bike last?

Trek bikes don’t all last the same time because that depends on the materials used and how heavily the bike is used. There’s so much variability– for all brands– for these and other factors that it can be difficult to estimate.

While most Trek bikes are well made, you’re not guaranteed that a bike will last a certain length of time. Regular bike maintenance is critical for whatever model you purchase. 

Is the Trek Fuel Ex 5 Worth It?

Trek Fuel Ex 5 is a striking but approachable bike, marketed as a high-value and high-performing option. With a dropper post and other great features, is it all hype or worth your money?

What type of bike is the Fuel Ex 5?

The Fuel Ex 5 is a mountain trail bike equipped with a blend of higher-end and accessible materials and features. It’s touted as a gateway to a mountain bike. The wording makes me think that the Fuel Ex 5 is trying to cater to those new to mountain or trail biking, or perhaps those who want great features but not at an eye-watering price point. 

How much does a Trek Fuel Ex 5 cost?

Still, the price is higher than some trail bikes by a good $1,000, so it’s important to investigate every feature offered. Prices are subject to change and vary based upon your make and specifications. Still, you’re looking at spending roughly $2,500 as of the end of 2021/ early 2022. 

What material is the Trek Fuel Ex 5 made out of?

The Trek Fuel Ex 5 features a lightweight aluminum frame, which surprised me for a few reasons. For one, at the price point, I expected perhaps a carbon fiber frame. But it also is a little heavy for its make.

Aluminum isn’t a terrible choice if you’re starting suspension trail riding. It is reasonable for moderate trails– but it can dent and become damaged by impact and debris. I do appreciate that aluminum won’t easily rust. 

How much does a Trek Fuel Ex 5 weigh?

The Trek Fuel Ex 5 comes in at 34 pounds and 6 ounces for medium frame size. This is interesting because the average weight for a full suspension trail bike with an aluminum body is between 29 and 33 pounds.

This makes the Trek Fuel Ex 5 a bit heavy for what you’d expect, especially considering it’s not a full-suspension bike. I would argue this isn’t the biggest problem for a trail bike, but it still should be noted.

Your ride will feel a little less springy than you might expect from an aluminum body. 

How much travel does a Trek Fuel Ex 5 have?

Here’s where the Trek Fuel Ex 5 shines: the travel. You get an impressive 140mm of travel, providing a smoother and more controlled ride. This is generous for a general trail bike, and an advantage over some competing bikes. 

Does the Trek Fuel Ex 5 have a dropper post?

The Trek Fuel Ex 5 likewise has a dropper post. By opting for a dropper post, you’re getting more versatility out of your seat positioning, as well as offering a slight advantage for visibility. While not a must-have, it’s a nice feature to have if you know how to use it effectively. 

What kind of drivetrain does the Trek Fuel Ex 5 have?

Trek Fuel Ex 5 has a Shimano 1×12 drivetrain. You’re getting 12 gear speeds and a single cassette. The 12 gears are sufficient for a trail bike for moderate trails, even if it’s not as generous as some models.

Shimano is a respectable brand and usually makes quality products. Their 12-speed drivetrain provides a stable and clean stop with new Hyperglide technology that’s meant to improve the single drivetrain experience.

For a single drivetrain, it’s a solid option, but I do wish they added a double drivetrain. 

What type of brakes does Trek Fuel Ex 5 have?

Hydraulic disc brakes are used for this model, which is a great upgrade for a mountain trail bike. The breaks are also manufactured by Shimano, which is another plus.

Is the saddle comfortable on the Trek Fuel Ex 5? 

The saddle is a Bontrager Arvada . This is a performance saddle seen on both road and trail bikes and is made with microfiber. Microfiber is known to be lightweight and fairly durable. While it’s not fully weather-resistant, it can repel water.

The rail is made out of steel, which is strong but also can corrode over time. The cut-out is designed for pelvic rotation and is focused on balancing comfort and efficiency.

It’s a reasonable saddle choice– not a stand-out, but suitable for regular trail riding. 

Arvada Comp adds comfort and reduces soft-tissue pressure by creating a strategic cut-out in the saddle shell. 

What are the tires like for Trek Fuel Ex 5?

The tires are a  27.5” Bontrager XR4 Comp , with a 30 TPI. The size is designed a little more for acceleration than traction. 30 threads per inch for the tire is on the low end. Utility tires are around 15 tpi, while the high end may be 120 TPI.

For general trail riding, you want a tire that falls between 60 and 120 TPI, and it is always a trade-off and balance. The highest tapis has less rolling resistance, while the lower end is less likely to puncture.

If you do buy the Trek Fuel Ex 5, you may want to consider if you can swap out the tires for a bit higher tpi. 

The XR4 Team Issue TLR tire offers incredible grip and fast-rolling efficiency in a new and improved tread pattern with 120 TPI casing. Save yourself from punctures with our Inner Strength sub-tread protection while squeezing out every bit of cornering traction with the 61a/50a dual-compound rubber. 

Frequently Asked Questions

Answer: This depends on the model you’re considering. If you look at a newer model of both, you’ll be getting a carbon body with either bike. They also both feature full suspension for a general mountain bike. The main difference is that the Trek Fuel Ex 9.7 and the Top Fuel 9.7 are in the wheels, travel, and gear capabilities. The Top Fuel comes with either 27.5 or 29ers, while the Top Fuel Ex has 29ers and more gear capabilities. The Ex is better for a trail bike, while the Fuel could be argued for as an XC bike. 

Answer: Ther Trek Fuel EX 9.8 features a carbon frame and weighs 28.94 pounds for a medium frame. 

Answer: This Trek model is a versatile trail bike with a platinum aluminum frame and 150mm travel. It weighs 31.92 pounds for a medium frame. 

Final Thoughts

The Trek Fuel Ex 5 has some great features going for it: hydraulic brakes, a dropper post, impressive travel, a respectable saddle, and well-designed gears. It is a bit limiting in other ways.

For example, an aluminum body frame but a heavier than average weight and low TPI tires make this bike a bit mixed in terms of features. It’s a decent bike for general light to moderate trail, and what’s here is mostly well done– I do wish it was a little cheaper. 

Interested? Buy the Trek Fuel Ex 5 Here . 

Final Buying Alternative 

If you like Trek as a brand but are looking for an upgrade from the Trek Fuel Ex 5, consider the Slash 9.7. This trail mountain bike features a carbon frame, responsive 29ers, a tube guard to protect against damage, and a generous dropper and seat tube. Buy the Slash 9.7 Here .  

Slash 9.7 pairs fast-rolling 29er mountain bike wheels with long travel suspension to make one speed-hungry rig that's perfectly suited to both rowdy trail rides and enduro races.

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Trek Fuel EX 5: In depth Review of the 2018 model

The 2018 Trek Fuel EX 5 has gone through some changes from the 2017 version. These changes have brought it up to date and made it a very capable and rugged bike.

Who is it for?

The Trek Fuel EX is a cross-country bike that is good for beginners and experts alike. It is ideal for those riders who like to go long distances. This bike allows the rider to take on technical terrain and have some serious fun on flowy single track too.

Specifications

How does it ride.

The Trek Fuel EX climbs brilliantly, due to the Shimano drive train. Additionally, the 29″ wheels help you roll over rocks and roots easily. This makes technical climbs a bit easier. Personally, I would prefer it to come with a dropper seat post, as it would make undulating trails a lot easier, and for a cross-country bike, this is the whole point.

Trek Fuel EX does have a lock out on the rear shock that makes climbing easier, however it only has two modes, off and on. I may be being a bit picky here, but sometimes you want at least some suspension travel for technical climbs. Therefore, I would like to see a shock that gives you the option to firm up the suspension, but not totally lock out if desired.

Descending and flow sections

For a 29″ wheeled bike the Trek Fuel EX is surprisingly agile. It turns a lot tighter than I expected it to, and rolls over obstacles, rocks and roots with ease. This gives you lots of confidence and you find yourself using the brakes less on descents. When blasting a long flow single track, it is great fun in a weird grown up way, rather than an aggressive playful way.

I found the Bontrager tyres are good for climbing and they roll easily. They also provide good grip in a straight line on the dirt. However, they have quite a round profile. Therefore, for me, they did not give me too much confidence on wet slippy rocks and corners. But, you cannot have everything. If I was to buy this bike, I would upgrade the tyres to something a bit more grippy.

Where is the Trek Fuel EX 5 good for?

The Trek Fuel EX 5 is great for long distance trail riding, especially when you fit a dropper post. We tested this bike at Coed y Brenin in North Wales, and it was great for trail centre riding. You wouldn’t want to do big jumps and drops with it, but it should cope with anything that most trail centres can throw at it.

Key Features

• Alpha Platinum Aluminium Frame
• RockShox Recon Silver Fork
• RockShox Deluxe RL Rear Shock
• Shimano Deore 20 Speed Drivetrain
• Shimano M315 Hydraulic Disc Brakes
• Bontrager XR3, 29 x 2.30″ Tyres
• Mino-Link feature is a small chip in the rocker link that allows you to change the seat stay position. This allows you to change the geometry of the bike. Therefore, you can make it lower and slacker to make it a bit more downhill friendly.

A great cross-country bike that is very capable. The advantage of being able to change the geometry with the Mino-Link is a great feature. The Trek Fuel EX 5 is great but it would benefit from wider handlebars, a dropper seat post and stickier tyres for riding in the wet. Out of the box, this bike will be amazing in dry conditions, but, customising your bike is fun, so don’t be put off buying one.

• ← Trek Remedy 8 : In Depth Test of the 2018 model
• Best Mountain Bike Upgrades: It is fun to customise →

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Trek Fuel EX 5

• AUS $ NZD $ USD $ CAD $ GBP £ EUR €

Weight / M - 15.03 kg / 33.14 lbs (with tubes)

At a glance

Fuel EX 5 is the gateway to full suspension trail bikes. A 140mm fork and 130mm of rear travel, a Shimano 1×10 drivetrain, a dropper post for getting low on descents, and Shimano hydraulic disc brakes make Fuel EX 5 a high-value, high-performance mountain bike with exceptional versatility.

Where To Buy

"A world-class trail bike"

"Fuel EX is a beautifully balanced and capable trail bike. The rear suspension is beautiful; as close to ideal as any bike I've ridden. It's sensitive where you want it to be, firm and crisp where it should be. It feels deep and controls big hits very well, and there's a nice platform for pedaling, and to pump and pop off when you're playing."

"Good at pleasing everybody"

"Fuel EX has a few tricks that help it keep a level head when outside of its comfort zone, and to be a cloud on rails when it's in the zone. Everything about the Fuel EX, which was already good at pleasing everybody, is now even better at it."

"An absolute trail rocket"

"Thanks to its burlier components, increased travel, and more aggressive geometry, it has become more of a shredder than ever! More performance, fun, and trail prowess."

Specifications

• Frame Alpha Platinum Aluminum, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel
• Fork Size: XS , S RockShox Recon RL, Solo Air spring, Motion Control damper, tapered steerer, 46mm offset, Boost110, 15mm Maxle Stealth, 140mm travel Size: S , M , ML , L , XL , XXL RockShox Recon RL, Solo Air spring, Motion Control damper, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 140mm travel
• Shock Size: XS , S RockShox Deluxe Select+, 210x52.5mm Size: S , M , ML , L , XL , XXL RockShox Deluxe Select+, 210x55mm
• Wheel Size 29" 27.5"
• Tires Size: XS , S Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60'' Size: S , M , ML , L , XL , XXL Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60''
• Crank Size: XS , S Race Face Ride, 30T steel ring, Boost, 170mm length Size: M , ML , L , XL , XXL Race Face Ride, 30T steel ring, Boost, 175mm length
• Bottom Bracket Shimano MT500, 92mm, PressFit
• Rear Derailleur Shimano Deore M6000, mid cage, 42T max cog
• Shifters Shimano Deore M6000, 10 speed
• Brakeset Shimano hydraulic disc, MT201 lever, MT200 caliper
• Handlebar Bontrager alloy, 31.8mm, 15mm rise, 750mm width
• Saddle Bontrager Arvada, steel rails, 138mm width
• Seatpost Size: XS , S TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length Size: M , ML , L , XL , XXL TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length

Q: How much is a 2020 Trek Fuel EX 5?

A 2020 Trek Fuel EX 5 is typically priced around $2,100 USD when new. Be sure to shop around for the best price, and also look to the used market for a great deal.

Q: Where to buy a 2020 Trek Fuel EX 5?

The 2020 Trek Fuel EX 5 may be purchased directly from Trek .

Q: How much does a 2020 Trek Fuel EX 5 weigh?

A 2020 Trek Fuel EX 5 weights M - 15.03 kg / 33.14 lbs (with tubes).

Q: What size wheels does the 2020 Trek Fuel EX 5 have?

The 2020 Trek Fuel EX 5 has 29" and 27.5" wheels.

Q: What size 2020 Trek Fuel EX 5 should I get?

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• Fuel EX 5 Deore Gen 5

Trek Fuel EX 5 Deore Gen 5

Fuel EX 5 is the gateway to full suspension trail bikes. Trail-taming front and rear suspension, a Shimano 1x12 drivetrain, a dropper post for getting low on descents, and hydraulic disc brakes make Fuel EX 5 a high-value, high-performance mountain bike with exceptional versatility. It's right for you if… You're ready to go full suspension, and you want a versatile trail bike at a great value. You want a ride that's sure-footed, capable, and responsive so you can stay in control no matter where you're riding. The tech you get A lightweight aluminum frame with a Knock Block steerer stop to protect against spinning bars. A 140mm RockShox Recon Silver fork, 130mm of rear travel with an X-Fusion Pro 2 shock, a durable 12-speed Shimano Deore drivetrain, dropper post, and hydraulic disc brakes. The final word You get full suspension performance without the sticker shock. Fuel EX 5 has the same frame technology as our higher-end alloy Fuel EX models with parts chosen to keep the price tag low and stoke level high. Why you'll love it: - You get a high-end ride at an exceptional value with frame features like Boost148 and ABP that give you confident handling and room to upgrade parts as your skills grow - It has the capability of far more expensive trail bikes: it shreds singletrack and can even handle the occasional XC or enduro race - The dropper post lets you lower your saddle on the fly so it's out of the way on descents - The RockShox fork's DebonAir spring can easily be adjusted for a specific rider weight, and it's lighter than a coil spring - We expanded our size range to ensure a better fit for all riders. And, you get the fastest wheel that fits your frame: XS frames get 27.5" wheels, S frames get to choose between 27.5" or 29", and sizes M to XL get 29" wheels

Geometry (27.5-inch Wheel Size)

Geometry (29-inch Wheel Size)

Will my bike have a curved top tube?

Smaller frames (XS and S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Due to supply-chain issues, Specs are subject to change without notice.

* Subject to change without notice.

Part Numbers

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• Fuel EX 5 Deore Gen 5

Trek Fuel EX 5 Deore Gen 5

Fuel EX 5 is the gateway to full suspension trail bikes. Trail-taming front and rear suspension, a Shimano 1x12 drivetrain, a dropper post for getting low on descents, and hydraulic disc brakes make Fuel EX 5 a high-value, high-performance mountain bike with exceptional versatility. It's right for you if… You're ready to go full suspension, and you want a versatile trail bike at a great value. You want a ride that's sure-footed, capable, and responsive so you can stay in control no matter where you're riding. The tech you get A lightweight aluminum frame with a Knock Block steerer stop to protect against spinning bars. A 140mm RockShox Recon Silver fork, 130mm of rear travel with an X-Fusion Pro 2 shock, a durable 12-speed Shimano Deore drivetrain, dropper post, and hydraulic disc brakes. The final word You get full suspension performance without the sticker shock. Fuel EX 5 has the same frame technology as our higher-end alloy Fuel EX models with parts chosen to keep the price tag low and stoke level high. Why you'll love it: - You get a high-end ride at an exceptional value with frame features like Boost148 and ABP that give you confident handling and room to upgrade parts as your skills grow - It has the capability of far more expensive trail bikes: it shreds singletrack and can even handle the occasional XC or enduro race - The dropper post lets you lower your saddle on the fly so it's out of the way on descents - The RockShox fork's DebonAir spring can easily be adjusted for a specific rider weight, and it's lighter than a coil spring - We expanded our size range to ensure a better fit for all riders. And, you get the fastest wheel that fits your frame: XS frames get 27.5" wheels, S frames get to choose between 27.5" or 29", and sizes M to XL get 29" wheels

Geometry (27.5-inch Wheel Size)

Geometry (29-inch Wheel Size)

Will my bike have a curved top tube?

Smaller frames (XS and S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Due to supply-chain issues, Specs are subject to change without notice.

* Subject to change without notice.

Part Numbers

2023 Trek Fuel EX 5 Gen 5 Review

Are you looking for a high-performance mountain bike? The 2023 Trek Fuel EX 5 Gen 5 is the perfect choice. 

This latest mountain bike in the Fuel EX lineup has been refined to perfection and comes with tons of great features.

The Fuel EX series from Trek has long been an industry standard as one of the most trusted mountain bikes on the market.

The fifth generation of these bikes has taken this legacy to the next level with its combination of cutting-edge materials, impressive technology and innovative design that makes it look and ride better than ever before.

This review will explore all of the aspects behind what makes the 2023 Trek Fuel EX 5 Gen 5 stand out and help you decide whether it’s the right bike for you. We’ll go in-depth into everything from performance to price, and show you exactly why this model is one of the best choices on the market.

The Trek Fuel EX 5 Gen 5 is an unforgettable new mountain bike that was released in 2023 and has already become the talk of the town! 

This awesome bike features some of the most advanced MTB construction and components, providing a truly unique and thrilling experience for riders. 

Read on to learn more about why this bike has made such a huge impact on cyclists everywhere.

The 2023 Trek Fuel EX 5 Gen 5 is the pinnacle of mountain biking performance with features designed to give riders unprecedented freedom and control on the trail. 

It features an aluminum frame with light and stiff geometry, as well as a dropper seat post for tackling big climbs, mountain descents, and off-road adventures with ease.

The Fuel EX 5 also comes with a reliable 12-speed drivetrain and hydraulic disc brakes that are ideal for navigating technical sections in any weather. This bike was built to tackle any terrain – from gravel roads to singletrack trails – allowing you to explore farther than ever before.

– Lightweight Alpha Platinum Aluminum frame

– RockShox Recon Silver front fork with 140 mm suspension travel delivers added control on descents

– X-Fusion Pro 2 rear shock with 210mm of travel to cushion those huge drops

– Shimano Deore 1×12 speed drivetrain offers gearing options for all terrains

– 30t chainring bolted to a Shimano crank and paired to a 10-51t cassette

– Shimano MT200 hydraulic disc brakes perfect for reliable stopping power in any conditions

– TranzX dropper post takes your ride’s capabilities up a notch so you can take on challenging terrain

– Alex MD35, tubeless compatible wheels wrapped in either Maxxis Rekon EXO or Bontrager XR4 Comp tires provide superior trail feedback

– Sizes XS and S ship with 27.5″ wheels while the Medium and larger sizes ship with 29″ wheels

Rides Like A Racehorse

The Trek Fuel EX 5 Gen 5 is designed with a lightweight aluminum frame and full suspension which make it capable of ripping over rough terrain. It also makes for snappy handling, so you can get around tight corners quickly thanks to its agile geometry.

Versatile Yet Refined

Despite its impressive performance, the Trek Fuel EX 5 Gen 5 remains very user-friendly and simple to use. Its Shimano 1×12 drivetrain may only contain 12 gears but still offers an unbeatable range of gearing options, allowing you take on any type of trail or climb imaginable. 

The long range Deore derailleur also offers crisp shifts with reliable accuracy even under pressure, while the hydraulic disc brakes offer accurate modulation control so you can slow down in style.

Smooth as Silk Suspension

Thanks to its full-suspension design, the Trek Fuel EX 5 Gen 5 gives you plenty of cushioning as well as unbeatable grip when riding over roots or rocks. 

Further refining things is a RockShox Recon Silver air fork up front along with X-Fusion Pro 2 rear shock, offering 140mm and 210mm of travel, respectively, for great off-road responsiveness yet enough composure for fast XC sensations too.

Final Thoughts

In short, it’s easy to see why so many experienced mountain bikers have given the 2023 Trek Fuel EX 5 Gen 5 rave reviews recently. 

It’s an insanely versatile ride that allows riders from all disciplines to enjoy blazing speeds combined with great control over varied trails and climbs. 

If you’re looking for a no compromise bike that will perform at an incredible level whatever trail conditions come your way – this is it!

Order online and have it shipped to your local dealer for final assembly!!

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• Fuel EX 5 Deore Gen 5

Trek Fuel EX 5 Deore Gen 5

Fuel EX 5 is the gateway to full suspension trail bikes. Trail-taming front and rear suspension, a Shimano 1x12 drivetrain, a dropper post for getting low on descents, and hydraulic disc brakes make Fuel EX 5 a high-value, high-performance mountain bike with exceptional versatility. It's right for you if… You're ready to go full suspension, and you want a versatile trail bike at a great value. You want a ride that's sure-footed, capable, and responsive so you can stay in control no matter where you're riding. The tech you get A lightweight aluminum frame with a Knock Block steerer stop to protect against spinning bars. A 140mm RockShox Recon Silver fork, 130mm of rear travel with an X-Fusion Pro 2 shock, a durable 12-speed Shimano Deore drivetrain, dropper post, and hydraulic disc brakes. The final word You get full suspension performance without the sticker shock. Fuel EX 5 has the same frame technology as our higher-end alloy Fuel EX models with parts chosen to keep the price tag low and stoke level high. Why you'll love it: - You get a high-end ride at an exceptional value with frame features like Boost148 and ABP that give you confident handling and room to upgrade parts as your skills grow - It has the capability of far more expensive trail bikes: it shreds singletrack and can even handle the occasional XC or enduro race - The dropper post lets you lower your saddle on the fly so it's out of the way on descents - The RockShox fork's DebonAir spring can easily be adjusted for a specific rider weight, and it's lighter than a coil spring - We expanded our size range to ensure a better fit for all riders. And, you get the fastest wheel that fits your frame: XS frames get 27.5" wheels, S frames get to choose between 27.5" or 29", and sizes M to XL get 29" wheels

Geometry (27.5-inch Wheel Size)

Geometry (29-inch Wheel Size)

Will my bike have a curved top tube?

Smaller frames (XS and S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Due to supply-chain issues, Specs are subject to change without notice.

* Subject to change without notice.

Part Numbers

• Fuel EX 5 Gen 5

We'll take care of you. Period.

It's our mission to provide you with world-class hospitality every time you visit us online or in-store. We're always here to help you. It's the Trek way.

Free shipping and professional assembly

All bikes ordered online ship for free to your local Trek shop for professional assembly. Participating retailers will even deliver your new ride to your doorstep!

30 Day Unconditional Guarantee

If for any reason you aren't 100% happy with your trekbikes.com purchase, you can return it in like new condition within 30 days - no questions asked.

"A world-class trail bike"

"Fuel EX is a beautifully balanced and capable trail bike. The rear suspension is beautiful; as close to ideal as any bike I've ridden. It's sensitive where you want it to be, firm and crisp where it should be. It feels deep and controls big hits very well, and there's a nice platform for pedaling, and to pump and pop off when you're playing."

"Good at pleasing everybody"

"Fuel EX has a few tricks that help it keep a level head when outside of its comfort zone, and to be a cloud on rails when it's in the zone. Everything about the Fuel EX, which was already good at pleasing everybody, is now even better at it."

"An absolute trail rocket"

"Thanks to its burlier components, increased travel, and more aggressive geometry, it has become more of a shredder than ever! More performance, fun, and trail prowess."

"Perfect all-arounder"

"In a world where most new full-suspension mountain bikes are amazing, Fuel EX stands apart as even more than that."

Fuel EX-compatible accessories

Whether you're busting berms, ripping rock gardens, or surfing singletrack — here are the accessories and gear you need to make sure your Fuel EX is always ready to send.

Which generation is right for you?

Choose from the lighter 130/140mm Fuel EX Gen 5 with better parts for the price or the more robust 140/150mm Fuel EX Gen 6 with more adjustability.

Service manual

Time to bust out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values, and platform-specific tech instructions below.

Get faster on the trail in a week

When it comes to being a better trail rider, practice makes perfect. Get seven tips from Pinkbike’s Christina Chappetta that will have you setting PR's and riding with more confidence in no time.

How to pack for any trail ride

Everything you need (and nothing you don’t).

Golden Heaven: Nothing but good vibes

Follow along as Casey Brown and Kirsten Van Horne let 'er rip from Golden to Kamloops on the new Fuel EX.

BIKE CHECK: The Fuel EX's of ‘Parallel II’

Take a closer look at Brandon Semenuk and Kade Edwards' inverted rides.

Product features

Will my bike have a curved top tube.

Smaller frames (XS and S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Active Braking Pivot

Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.

Straight Shot w/Knock Block

Trek's Straight Shot frame design optimizes the stiffness-to-weight ratio for a more responsive ride. You'll be able to push harder and stay more planted on your line when the going gets rough.

Shimano Deore

Shimano Deore brings even more adventure with a wider range of gear choices for the steep stuff, the fast stuff, and the fun. With smooth riding, improved chain stability, and sharp shifting, Deore heightens your mountain biking confidence and control so you can focus on the trail and enjoy the ride.

You almost forgot your pedals

This bike doesn’t come with pedals because you'll have a better ride if you choose your own. Explore the pedal guide to find the best pedals for your riding style. Reach for flat pedals for simple versatility or go for clipless MTB pedals if you want control & efficiency.

Trail-ready gear

Deck out your Fuel EX Gen 6 with our favorite compatible accessories

Suspension Calculator

This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.

Mino Link adjustable geometry

Fine tune head tube angle by 1/2° and BB height by up to 10mm with the simple turn of a nut. Just flip the link to choose between slack or slacker geometry, without negatively affecting suspension performance. A Trek exclusive.

Alpha Platinum Aluminum

Our premium lightweight aluminum is continuously cold extruded and butted at multiple points, and hydroformed into sophisticated tube shapes for maximum strength and minimum weight.

Control Freak Cable Management

The lightest, quietest, most versatile cable management system allows any combination of shift, brake, lockout, and dropper post lines to be routed through the frame for clean looks and the ultimate custom setup.

Boost148/110

Wider dropouts (110mm front, 148mm rear) give you the stiffness of a 27.5" wheel with all the benefits of a 29" wheel, and Boost148 in the rear lets you run wider tires and a larger chainring without affecting q-factor and pedaling efficiency.

How tall are you?

To measure your height, stand straight up, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.

What is your inseam?

How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inseam measurement. Your inseam is very important to your final bike size so please measure carefully.