trek bike iso 4210 2

ISO 4210-2:2023 – City, Trekking, Mountain & Racing Bicycles

In 1896, both road and track cycling became an Olympic sport, and after a century, mountain biking , a cross-country race over rough terrain, made its Olympic debut in the 1996 Games in Atlanta . There were four events: cross country (XCO), downhill (DHI), trials, and combined. For men, Bart Brentjens of The Netherlands placed first; for women, Paola Pezzo of Italy placed first. In regards to the 1996 race, Brentjens reports that “the bikes have changed totally compared to what we have now.” Today’s mountain bikes include larger wheel diameters, wider tires, and commonplace suspension on both ends of the bike. The safety and performance requirements for the design, testing, and assembly of these bicycles are detailed in ISO 4210-2:2023—Cycles – Safety Requirements For Bicycles – Part 2: Requirements For City And Trekking, Young Adult, Mountain And Racing Bicycles .

The ISO 4210-2:2023 Standard for Mountain And Racing Bicycles

ISO 4210-2:2023 specifies safety and performance requirements for the design, assembly, and testing of bicycles and sub-assemblies. It lays down guidelines for manufacturer’s instructions on the use and care of such bicycles. The standard covers performance requirements for brakes, handlebars, steering ability, frames, forks, wheel and tyres, pedals, chain and drive belt, saddles and seat posts, lighting systems, markings and more. It provides testing specifications for the overall assembly and materials used in young adult, city and trekking, mountain, and racing bicycles. ISO 4210-2:2023 specifically applies to these bicycles:

• Young adult bicycles with maximum saddle height of 635 mm or more and less than 750 mm
• City and trekking bicycles, mountain bicycles, and racing bicycles that have a maximum saddle height of 635 mm or more including folding bicycles.

This standard does not apply to specialized types of bicycle, such as delivery bicycles, recumbent bicycles, tandems, BMX bicycles, and bicycles designed and equipped for use in severe applications such as sanctioned competition events, stunting, or aerobatic manoeuvres .

What Is the Difference Between a Racing Bike VS a Mountain Bike?

Riders use road (racing) bikes for fast paved-surface riding (i.e., city streets, country lanes, cycle paths, and mountain passes). Racing bikes are designed to be lightweight and aerodynamic as their frame geometry, components, and handlebar shape lend them to being fast. On the other hand, mountain bikes are designed for off-road riding, and their thick tires and treads make them extremely slow on tarmac, helping the rider stay upright on rocky, muddy single track trails. The objective of a mountain bike is to improve balance over bumpy sections, along with powerful disc brakes and massive gearing ranges for all sorts of off-road terrain.

Besides varying in their functionality and use, both bikes vary visually in terms of tire size, tread pattern, and lack of suspension forks. The most striking visual distinction between a road and mountain bike is the handlebar. Road bikes have narrow drop handlebars that are meant to make the rider more aerodynamic and offer three hand positions for riding (i.e., the hoods, the drop, and tops). Mountain bikes have wide flat bars that are meant to increase handling (especially in tight corners) and improve comfort off-road.

Braking Requirements in ISO 4210-2:2023

ISO 4210-2:2023 maintains that a bicycle shall be equipped with at least two independently actuated braking systems—one for the front wheel and the other for the rear wheel. The braking systems operate without binding and must be capable of meeting the standard’s braking performance requirements by performing one of the two test methods:

• Track Test in which braking distance is measured directly with the progressive characteristics of the brakes being self-evident. The progressive characteristics of the brake are determined by linearity measurements.
• Machine/Rig Base Test in which braking force is measured and, from which, braking performance values are calculated.

For both tests, the bicycle must show for smooth, safe, stopping characteristics. This ensures the bicycle is stopping within the required distances without occurrence of excessive juddering, front wheel locking, bicycle overturning (rear wheel lifting uncontrollably), rider’s loss of control, and excessive side-skid causing the rider to put his foot to the ground to retain control.

The ISO 4210 Standard, Safety Requirements of Bicycles

ISO 4210, Cycles- Safety Requirements for Bicycles, has nine parts that specify the safety and performance requirements for the design, assembly, and testing of bicycles and sub-assemblies having maximum saddle height 635 mm or more. Here are the parts of ISO 4210:

• ISO 4210-1:2023 —Part 1: Vocabulary
• ISO 4210-2: 2023—Part 2: Requirements For City And Trekking, Young Adult, Mountain And Racing Bicycles
• ISO 4210-3:2023—Part 3: Common Test Methods
• ISO 4210-4:2023—Part 4: Braking test methods
• ISO 4210-5:2023—Part 5: Steering Test Methods
• ISO 4210-6:2023—Part 6: Frame and Fork Test Methods
• ISO 4210-7:2023—Part 7: Wheels and Rims Test Methods
• ISO 4210-8:2023—Part 8: Pedal and Drive System Test Methods
• ISO 4210-9:2023—Part 9: Saddles and Seat-Post Test Methods

ISO 4210-2:2023—Cycles – Safety Requirements For Bicycles – Part 2: Requirements For City And Trekking, Young Adult, Mountain And Racing Bicycles is available on the ANSI Webstore.

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2021 Trek ISO-4210-2

• Serial: WTU293XC2513R
• Manufacturer: Trek
• Name: Rose's Bike
• Model: ISO-4210-2
• Primary colors: Pink

Distinguishing features

Magenta; Trek Precaliber

Memories are made on two wheels

Bikes give kids the chance to get outside, have fun, and find freedom. Precaliber introduces them to the joys of riding and makes it easier for them to learn and grow their skills, whether they’re just starting out on training wheels or ready to learn how to shift.

Four wheel sizes fit growing kids

Height: 86 – 102 cm 2’ 9.9” – 3’ 4.2” 12” wheels—sized right for youngsters who are just starting to ride. Includes training wheels.

Height: 99 – 117 cm 3’ 3” – 3’ 10.1” 16” wheels—for beginning riders who are a little older and taller. Includes training wheels.

Height: 114 – 132 cm 3’ 8.9” – 4’ 4” 20" wheels—for intermediate riders who have mastered the basics and are ready to learn new shifting and braking skills.

Height: 130 – 150 cm 4’ 3.2” – 4’ 11.1” 24” wheels—sized for the big kids. Great for older children who have the solid handling, shifting, and braking skills necessary for a big kids' bike.

For neighborhood cruises and sidewalk races

Precaliber is perfect for practicing turns in the driveway, racing down the sidewalk, and taking a family spin around the neighborhood. Wide, stable tires and a light, easy-to-handle frame give kids the confidence to pedal across the yard and down the occasional gravel path.

Designed with kid-friendly features

Each of our Precalibers and all of their parts are designed specifically for kids, by people who know bikes. They’re lightweight, built to hold up to rough and tumble play, and have size-appropriate grips, levers, pedals, and saddles. We put a lot of thought into getting the details right, because we know positive and fun experiences with biking at an early age can encourage a lifelong hobby.

Easy to hop on and off

Precaliber's frame is lower than most kid's bikes, which provides more confidence when mounting and dismounting.

Handle or light - you choose

The kid-sized saddles have an integrated handle for easy lifting and guiding while they ride. It can also be swapped out for a tail light to boost visibility.

Wide tires, more traction

Wider tires are more stable and offer better grip. It makes kids even more confident and comfortable while riding.

12" + 16" wheels - great for the youngest riders

These Precaliber models are designed for ages 3-6, and they all come with training wheels. They’re perfect for kids who are just learning to ride but are too big for a balance bike, and for children who prefer to ride with training wheels until they feel a bit more comfortable on two wheels.

Tool-free training wheels

All 12 and 16" bikes come with training wheels that are easily removed with the twist of a knob once they're no longer needed. No tools required!

Kid-sized hand brakes

Some 16" bikes come with hand brakes, which is a great option for children who have the hand strength and coordination necessary to start learning how to use them.

20" + 24" wheels - more features, more chances to learn

These larger Precalibers are designed for kids ages 6-12 who have a good command of basic bike skills and are ready to tackle more. They have lots of different combos of brake types, and speeds so you can pick the perfect bike for your child's skill level.

Lots of gearing and brake options

We want you to be able to pick a Precaliber that's perfectly suited to your kid's age and skill level. That's why we offer models with different numbers of gears and brake types. For example, fewer gears are great for kids who are just getting used to them, while older kids with good hand strength and coordination can generally handle additional gears.

Roll over the rough stuff

Some 24" bikes have mountain bike-styling and suspension forks for kids who want off-road looks and a smoother ride while biking over bumps.

Bikes both you and your kids will love

Tested. trusted. made to last..

We want your kids to enjoy biking just as much as you do, so we put the same amount of dedication and know-how into their bikes as we do yours. Each one is made with durable, high-quality materials and assembled by a professional mechanic so you can focus on having fun with your little ones for years to come.

Kids' Bike Trade-Up Program

When you purchase a kids’ bike at a participating Trek store, you can bring it back within three years and receive up to 50% of the bike’s original purchase price in credit towards the purchase of a new, larger bike.

CYCLES – SAFETY REQUIREMENTS FOR BYCICLES

At STEP Lab, we manufacture testing machines for the bicycle industry that conduct various tests on all bike components, adhering to various international standards, including ISO 4210 .

PAGE CONTENT

WHAT IS ISO 4210?

ISO 4210 is an international Standard that establishes safety requirements and specifications for the design, manufacturing, and testing of bicycles. The standard ensures that bicycles are built with high safety standards to protect users during their usage.

It covers various aspects of bicycles, including material strength, essential components like brakes, wheels, steering system, and frame, as well as testing methods to evaluate safety and performance. ISO 4210 is a reference document for the bicycle industry, used by manufacturers, importers, retailers, and certification organizations to ensure compliance with safety standards.

WHAT DOES ISO 4210 MEASURE?

ISO 4210 primarily measures the safety and performance aspects of bicycles . For example, ISO 4210-1:2023 specifies terms and definitions related to safety and performance requirements for bicycles, focusing on factors like saddle height and testing procedures. ISO 4210-2:2023 extends these measures to specific types of bicycles, including city, trekking, mountain, and racing bikes, ensuring that they meet standardized safety and performance requirements. These measurements play a crucial role in guaranteeing the quality, reliability, and safety of bicycles in various categories.

ISO 4210 – TEST METHODS

Performing an ISO 4210 test involves a rigorous evaluation of bicycles to ensure compliance with safety and performance standards. While the specific procedures may vary depending on the part being tested, such as the frame and fork, the general process adheres to ISO 4210 guidelines. Test methods often involve assessing factors like strength, durability, and overall performance. These tests are designed to guarantee the resistance and durability of individual parts and the bicycle as a whole.

HOW IS ISO 4210 DIVIDED?

ISO 4210 is divided into nine different parts. Each part covers a different aspects of bicycle safety and provide specific requirements for various components and systems. The nine parts of ISO 4210 are:

TESTING MACHINES FOR ISO 4210

Discover our multi-axial systems for complex and precise movements. The flexibility of our systems allows several actuators of different sizes to work simultaneously.

With the proper additional fixture, this test bench can perform all the required tests for handlebars, forks, saddles, seat-posts, pedals, and drive systems as specified in ISO 4210-5, ISO 4210-6, ISO 4210-8, and ISO 4210-9 .

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NF EN ISO 4210-2

Cycles - safety requirements for bicycles - part 2 : requirements for city and trekking, young adult, mountain and racing bicycles.

ISO 4210-2:2015 specifies safety and performance requirements for the design, assembly, and testing of bicycles and sub-assemblies having saddle height as given in Table 1, and lays down guidelines for manufacturer's instructions on the use and care of such bicycles. This part of ISO 4210 applies to young adult bicycles with maximum saddle height of 635 mm or more and less than 750 mm, city and trekking bicycles, mountain bicycles, and racing bicycles that have a maximum saddle height of 635 mm or more including folding bicycles (see Table 1 and Figure 1). This part of ISO 4210 does not apply to specialized types of bicycle, such as delivery bicycles, recumbent bicycles, tandems, BMX bicycles, and bicycles designed and equipped for use in severe applications such as sanctioned competition events, stunting, or aerobatic manoeuvres. NOTE For bicycles with a maximum saddle height of 435 mm or less, see ISO 8124‑1, and with a maximum saddle height of more than 435 mm and less than 635 mm, see ISO 8098.

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Publication date, release date, number of pages, classification index, print number, international kinship, european kinship.

ISO 4210-2:2015 specifies safety and performance requirements for the design, assembly, and testing of bicycles and sub-assemblies having saddle height as given in Table 1, and lays down guidelines for manufacturer's instructions on the use and care of such bicycles.

This part of ISO 4210 applies to young adult bicycles with maximum saddle height of 635 mm or more and less than 750 mm, city and trekking bicycles, mountain bicycles, and racing bicycles that have a maximum saddle height of 635 mm or more including folding bicycles (see Table 1 and Figure 1).

This part of ISO 4210 does not apply to specialized types of bicycle, such as delivery bicycles, recumbent bicycles, tandems, BMX bicycles, and bicycles designed and equipped for use in severe applications such as sanctioned competition events, stunting, or aerobatic manoeuvres.

NOTE For bicycles with a maximum saddle height of 435 mm or less, see ISO 8124‑1, and with a maximum saddle height of more than 435 mm and less than 635 mm, see ISO 8098.

Le présent document a été développé pour répondre à une demande présente dans toute l'Europe, et son objectif est de garantir que les bicyclettes produites en conformité avec celui-ci seront aussi sûres que possible. Les essais ont été conçus pour garantir la résistance et la durabilité des différents composants et de la bicyclette dans son ensemble, en exigeant une qualité élevée à tous les niveaux et en prenant en compte les aspects liés à la sécurité dès l'étape de la conception. Le champ d'application du présent document a été restreint aux questions de sécurité et a spécifiquement évité une normalisation des composants. Si la bicyclette est utilisée sur la voie publique, les réglementations nationales s'appliquent. Le présent document ne comporte pas d'exigences relatives aux dispositifs d'éclairage de signalisation et aux avertisseurs sonores compte tenu des différentes réglementations applicables dans les pays européens.

• 1 Domaine d'application
• 2 Références normatives
• 3 Termes et définitions
• 4 Exigences
• 5 Instructions du fabricant
• Annexe A Géométrie de la direction
• Bibliographie

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