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    Road, path, trail, triathlon, touring. Pure Fun for the young champion.

    540R Road Bike | Age: 7 - 11 years | Height: 130 - 160 cms

    The ultimate kids road bike allows you to climb the highest mountain pass like your hero, and ride to school the next day. You can even play around the cyclocross track as well.

    With predictive handling, shock absorbing geometry, premium Microshift 16 speed SRAM cassette gearing, and the highest safety and stopping power, this is a thoughtfully designed and impeccably safe kids road bike. Just 11kg.

    Ability Level: Comfortable With Major Skills And Ready For The Next Step. Looks To Anticipate The Road Ahead.


    At ByK we know kids love to be like their heroes, on the 620R they can be ready to climb the highest mountain pass and ride to school the next day. Our unique design makes it possible to play around cyclocross style as well.

    Our clever integrated child specific gear design combine with premium components for a lightweight, versatile and strong dream machine.

    Like the entire ByK Range, this is not a scaled down adult bike. Every single component has been considered, tested, custom sized and tuned to suit our rider's profile. Our unique ergonomic riding position and geometry offer a range of riding positions and adjustability unexpected at this size.


    Our newest bike is road inspired but what really shines about the E540R is that it handles the vast variety of real world riding challenges like no other.

    From our lightweight ergonomic Alloy frame and CRM forks to the durable low profile race tyres with high puncture resistance and the custom sized handlebars and stem for the best possible control and comfort, every details has been considered.

    Microshift's innovative gear/brake shifters are child specific, super easy to reach and use and we have combined them with our premium SRAM cassette, gear changing is taken to a new level for kids road bikes.


    Safety is paramount for ByK and with the E540R ByK takes safety to a new level for a kids road bike. From our predictive handling and shock absorbing geometry to the coolest and great stopping power of our mini v-brake system. The innovative frame improves balance and control to help each rider operate at the safest level possible.

    To make a children's bike safe, the rider needs to be able to brake efficiently and confidently. The custom-sized V-Brakes we have used are calibrated for age, ability and ergonomic fit. And they are made of non-flexing, strong and light alloy. Our light weight alloy rims ensure pedalling is easier. But more importantly alloy rims are a more efficient braking surface than cheaper, chrome-plated steel rims, and are therefore safer.

    Little Details Count:

    • True cartridge bottom bracket for straighter chain alignment.
    • SRAM Cassette gears for maximum shift accuracy and reliability.
    • CRM Forks for extra comfort and improved handling.
    • Super tough alloy wheels for reduced maintenance.
    • Calibrated V-Brakes for progressive braking.
    • Full grip pedals for added safety.
    • Machined surface rms for predictable braking.
    • Custom sized grips.

    WEIGHT: 12.5 kg
    FRAME : Butted Alloy Frame, Low Gravity Concept Design, CRM Forks
    GEARS: 16 Speed Microshift Integrated Alloy Levers, Microshift Alloy R8 Rear Derailler, SRAM Mid Range Cassette and Front Derailler. Prowheel Alloy Cranks Custom Length
    WHEELS: Dynamic Advantage Tall Alloy Wheels, Reinforced 36 Hole
    TYRES: Low Profile, Low Resistence Design with Micro grip & Tough Tubes
    BRAKES: Tektro Power Control Alloy Mini V-Brakes
    BRAKE LEVERS: Max Power Alloy Tektro Custom Sized Levers
    SADDLE: Adjustable, Comfort Midi+ Deluxe
    HANDLEBARS: Alloy Custom Width, Drop & Reach with Alloy Short Reach Stem
    BELLS: Included