Description
YOMO 18 | 18″ Wheel Kids Bike
The YOMO 18 is a lightweight 18 inch kids bike that fills the gap between smaller first-pedal bikes and a larger geared bike. At just 6.6 kg, it gives growing riders more room while retaining a simple single-speed drivetrain, making it a useful next step for children who are riding confidently but are not yet ready for gears.
YOMO recommends the YOMO 18 for children aged approximately 5-7 years, with a rider height of 110-125 cm and an inside leg of 49-60 cm. A lightweight aluminium frame and fork are combined with child-specific geometry, a narrow Q-factor crankset, reach-adjustable brake levers and carefully scaled contact points to make the bike easier for smaller riders to control.
Key Specifications
- 18 inch wheel kids bike
- Recommended age: 5-7 years
- Recommended rider height: 110-125 cm
- Recommended inside leg: 49-60 cm
- Weight: 6.6 kg
- Single-speed drivetrain
- Tektro reach-adjustable brake levers
- Alloy Mini V-Brakes
- Kenda Small Block Eight 18 x 1.50 tyres
- 130 degree safety headset
- Maximum rider and carried load: 55 kg
Why the 6.6 kg Weight Matters
At 6.6 kg, the YOMO 18 keeps overall bike weight low for a growing child. A lighter bike requires less effort to get moving and is easier for a young rider to steer, stop and manoeuvre, allowing them to concentrate on developing their riding skills rather than managing unnecessary weight.
Low weight also makes the bike easier for children to handle when getting on and off or moving it around when they are not riding.
Child-Specific Geometry
The 6061 T6 heat-treated aluminium frame uses triple-butted tubing, a low centre of gravity and geometry developed around children’s proportions. Rather than simply scaling down an adult bike, YOMO has shaped the riding position around the needs of a smaller rider to create balanced and predictable handling.
The YOMO 18 has a 460 mm standover height, with saddle adjustment from 515 mm to 595 mm. Its 425 mm effective top tube and 788.5 mm wheelbase are also proportioned around the intended rider size.
Why Child-Sized Controls Matter
The controls and contact points have been selected to suit smaller hands and bodies. A 480 mm aluminium handlebar uses small-diameter Velo Mushroom grips, while Tektro JL352-RS aluminium brake levers feature reach adjustment so their position can be set appropriately for smaller hands.
A Selle Royal Explora JRN saddle uses child-specific dimensions, while the quick-release seat clamp makes it straightforward to adjust the saddle height as the rider grows.
Single-Speed Simplicity
The YOMO 18 deliberately uses a single-speed drivetrain, removing the additional controls and decisions that come with gears. This keeps operation simple while children continue developing their balance, braking, cornering and general bike-handling skills.
A 25T forged aluminium chainring is paired with a 15T freewheel and KMC S1 chain. The simple drivetrain also helps keep weight and maintenance requirements down, making the YOMO 18 a natural intermediate step before progressing to a geared kids bike.
Why the Narrow Q-Factor Matters
The forged aluminium crankset uses 100 mm cranks and a narrow Q-factor. Reducing the width between the pedals helps provide a more natural pedalling position for smaller hips and legs, rather than forcing a child to pedal with an unnecessarily wide stance.
A Thun Twist-ML cartridge-bearing bottom bracket supports the crankset, while the compact Chainlooper chainguard helps keep the drivetrain covered without the bulk of a large plastic chaincase.
Controlled Steering
A 130 degree safety mechanism is incorporated into the semi-integrated headset to limit excessive handlebar rotation. This helps prevent sudden over-rotation of the steering while younger riders are developing their bike-handling skills.
The system works alongside the YOMO 18’s child-specific geometry to keep steering predictable and manageable as confidence develops.
Easy-Reach Braking
Alloy Mini V-Brakes are fitted front and rear and operated by Tektro JL352-RS aluminium brake levers. The reach-adjustable mechanism allows the lever position to be set closer to the handlebar where required, helping smaller hands comfortably reach and operate the brakes.
Both brakes use dual linear spring tension adjustment and rust-resistant nuts and bolts, adding useful practicality for a children’s bike expected to see regular family use.
18 Inch Wheels with Sealed Bearing Hubs
YOMO lightweight aluminium rims are paired with sealed-bearing aluminium hubs. The sealed bearings are designed to provide smooth rolling with reduced maintenance, while Allen key axle bolts avoid exposed quick-release levers or sharp axle edges around the wheels.
Kenda Small Block Eight 18 x 1.50 tyres provide the contact with the ground and feature reflective sidewalls for additional low-light visibility. Stainless steel spokes add further practicality for regular use.
Child-Specific Saddle and Contact Points
The Selle Royal Explora JRN saddle measures 205 mm long by 130 mm wide and is shaped specifically around children’s proportions. YOMO pairs it with an adjustable aluminium seatpost and scaled cockpit so the rider’s main contact points are appropriate for a smaller body.
These details matter as rides become longer: a bike that fits naturally allows a child to concentrate on riding rather than compensating for oversized controls, an unsuitable saddle or an awkward riding position.
YOMO 18 Size Guide
- Age: approximately 5-7 years
- Rider height: 110-125 cm
- Inside leg: 49-60 cm
- Wheel size: 18 inch
- Standover height: 460 mm
- Lowest saddle height: 515 mm
- Maximum saddle height: 595 mm
- Handlebar height: 660 mm
- Maximum rider and carried load: 55 kg
Age should be treated as a guide rather than the deciding factor when choosing a children’s bike. YOMO recommends using inside leg as the primary sizing measurement, with rider height helping to confirm the overall fit. Confident riders may be suitable from around a 49 cm inside leg, while YOMO advises that newer riders will often need closer to 52 cm.
Who It’s For
The YOMO 18 is for children who have outgrown a smaller kids bike but would benefit from keeping their next bike lightweight, simple and easy to control before moving onto gears. Its 18 inch wheels, 6.6 kg weight, single-speed drivetrain and child-specific controls make it particularly well suited to confident young riders progressing onto longer family rides while continuing to develop their core cycling skills.
