Description
YOMO 20 | 20″ Wheel Kids Bike
The YOMO 20 is a lightweight 20 inch kids bike designed for children ready to start using gears and take on longer family rides. At just 7.65 kg, it combines a lightweight 6061 T6 aluminium frame and fork with child-specific geometry, Shimano 7-speed gearing and controls carefully proportioned for younger riders.
YOMO recommends the YOMO 20 for children aged approximately 6-9 years, with a rider height of 115-135 cm and an inside leg of 53-67 cm. Rather than simply shrinking adult components, details including the narrow Q-factor crankset, reach-adjustable brake levers, slim grips and child-specific saddle are chosen around the proportions and needs of younger cyclists.
Key Specifications
- 20 inch wheel kids bike
- Recommended age: 6-9 years
- Recommended rider height: 115-135 cm
- Recommended inside leg: 53-67 cm
- Weight: 7.65 kg
- Shimano Rapidfire Plus shifting
- Shimano 7-speed cassette
- Tektro reach-adjustable brake levers
- Alloy Mini V-Brakes
Why the 7.65 kg Weight Matters
At 7.65 kg, the YOMO 20 keeps weight low for a geared 20 inch kids bike. For a smaller rider, that makes the bike easier to get moving, steer, stop and handle without having to fight unnecessary weight.
A lighter bike is also easier for a child to manoeuvre when getting on and off, navigating tighter spaces or picking the bike up. The aim is to let them concentrate on riding and developing confidence rather than managing a bike that feels too heavy.
Child-Specific Geometry
The 6061 T6 heat-treated aluminium frame uses child-specific geometry and a low centre of gravity rather than relying on adult proportions scaled down to a smaller frame. This helps create a natural riding position and predictable handling for younger riders.
The YOMO 20 has a 505 mm standover height, 550 mm minimum saddle height and 670 mm maximum saddle height. Its 839 mm wheelbase and 446 mm effective top tube are also proportioned around the intended rider size.
Why Child-Sized Controls Matter
The cockpit and contact points have been selected specifically with smaller riders in mind. A 500 mm alloy handlebar is paired with slim Velo double-density grips, while Tektro JL510-RS aluminium brake levers feature reach adjustment to better accommodate smaller hands.
A Selle Royal Explora JRN saddle provides a child-specific shape, while the quick-release seat clamp makes saddle-height adjustments straightforward as the rider grows.
Shimano 7-Speed Gearing
Moving to gears gives young riders more options as rides become longer and terrain becomes more varied. Shimano Rapidfire Plus shifting operates a 7-speed drivetrain with an 11-28T cassette and 32T front chainring, giving children a useful selection of gears for flatter paths, family rides and hills.
The Rapidfire Plus shifter includes an optical gear display so the rider can see which gear they are using. YOMO also specifies the system with the ability to downshift by up to three gears in a single stroke.
Why the Narrow Q-Factor Matters
The forged aluminium 114 mm crankset uses a narrow Q-factor, reducing the width between the pedals compared with a wider crank arrangement. For smaller hips and legs, this supports a more natural pedalling position rather than forcing the rider into an unnecessarily wide stance.
The crankset uses a 32T forged aluminium chainring with a double plastic chainguard, while a cartridge-bearing Thun Goal bottom bracket completes the setup.
Easy-Reach Braking
Alloy Mini V-Brakes provide braking at the front and rear, operated by Tektro JL510-RS levers designed around younger riders’ hands. The reach-adjustable mechanism allows the lever position to be brought closer to the handlebar where required, helping children operate the brakes comfortably and confidently.
20 Inch Wheels with Sealed Bearing Hubs
Lightweight double-wall aluminium rims are paired with sealed-bearing aluminium hubs and quick-release axles. Sealed bearings help the wheels roll smoothly while reducing routine maintenance, and the quick-release design makes wheel removal and fitting more straightforward.
Kenda Small Block Eight 20 x 1.50 tyres provide the contact with the ground and include reflective sidewalls to improve low-light visibility. Stainless steel spokes add another practical detail for a bike expected to see regular use in British riding conditions.
Why the Details Matter
The YOMO 20 is designed around the idea that a children’s bike should fit the child rather than simply look like a smaller adult bike. Its slim grips, reach-adjustable brake levers, narrow crank position, child-specific saddle and carefully sized cockpit all contribute to making the controls and riding position more appropriate for smaller bodies.
Combined with its 7.65 kg weight, these details are intended to make starting, steering, braking, changing gear and pedalling easier to manage as children build their skills and progress onto longer rides.
YOMO 20 Size Guide
- Age: approximately 6-9 years
- Rider height: 115-135 cm
- Inside leg: 53-67 cm
- Wheel size: 20 inch
- Standover height: 505 mm
- Lowest saddle height: 550 mm
- Maximum saddle height: 670 mm
- Maximum rider and carried load: 65 kg
Age should be treated as a guide rather than the only way to choose a children’s bike. YOMO uses inside leg as the primary sizing measurement, with rider height helping to confirm overall fit.
Who It’s For
The YOMO 20 is for growing children who are ready to progress onto a lightweight 20 inch geared bike. Its Shimano 7-speed drivetrain makes it particularly suitable for riders beginning to tackle hills and longer family adventures, while the low weight, child-specific geometry and appropriately scaled controls help keep the bike manageable as their confidence and riding skills develop.