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BYK E-540x3i - Watermelon

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Delivery and Shipping

Free Shipping on orders over $120 (excludes some large/oversized items) AUS only. 

$15 Flat rate Express Shipping option available for non-bulky items. Usually delivered the next business day (Metro Areas) AUS only.

Same Day Dispatch on orders before 2pm (excludes bikes).

Delivery times will vary from 2-5 business days for metro areas and 7-14 business days for rural and remote areas.

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An entirely revolutionary bicycle - never before has a bike at this caliber delivered such a remarkable blend of dynamic performance, efficiency, and safety. We've carefully examined each component to enhance durability while simultaneously reducing the overall weight.

Boasting the exceptionally sleek Shimano 3-speed internal gears, alongside the remarkably lightweight ByK RGO frame, this bike weighs in at a mere 11+kg.

AGE: 7 - 11 YEARS | HEIGHT: 130 - 160 CMS



The Alloy frame, designed for minimal weight and enhanced handling, has been meticulously crafted. Additionally, the sturdiest wheels available have been integrated into this bike, boasting 36 spokes per wheel for exceptional strength. These wheels feature eyelit rims and premium quality stainless steel spokes. While kids will be kids and mishaps can still occur, this thoughtful design approach aims to reduce the frequency of bent wheels, ultimately saving you time on repairs!


Each component has been carefully considered to enhance strength and decrease the overall weight. Another pivotal element of this clever design is the enhanced control and superior bump dampening capability of the CRM forks. This enhancement provides a significant edge in both handling and comfort, contributing to a smoother riding experience.


For a children's bike to be genuinely safe, it's imperative that the rider can brake with efficiency and confidence. The tailor-made V-Brakes implemented are calibrated to match age, skill level, and ergonomic suitability. These brakes are constructed from non-flexing, robust, and lightweight alloy. Furthermore, the lightweight alloy rims not only facilitate smoother pedaling but also serve as a superior braking surface compared to less effective chrome-plated steel rims, enhancing safety.



  • True cartridge bottom bracket for straighter chain alignment.

  • Shimano internal gears forleast resistance, ease of change and durability.

  • CRM forks for extra comfort and improved handling.

  • Long rear stay length for best possible gear shifting

  • 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.







Butted Alloy Frame, Low Gravity Concept Design, CRM Forks


Shimano 3 speed internal gears


Dynamic Advantage Tall Alloy Wheels, Reinforced 36 Hole with Toughnut Eyelets


Low-Profile, Low-Resistance Design with Tough Tubes


Alloy Tektro Front & Rear Calibrated V brakes

Brake Levers:

Alloy Tektro Custom Sized Levers


Adjustable, Comfort XL Midi Deluxe


Custom Width Low Rise V-Bars

Safety Reflectors:






The bike you purchase from will be shipped unbuilt in its original packaging. Crooze highly recommends that this bike must be built by a qualified mechanic or bike shop. Any assembly undertaken without professional assistance is at the customer's risk and any injury as a result of the build without professional assistance will not be covered by the warranty.

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