8-11 Years 20" -24" Wheel
20 inch wheeled bikes are the first size of kids bike that commonly include a rear mech and gears these bikes can also include front suspension.
Single speed: Some 20 inch wheel bikes are supplied with a single speed rear sprocket. This is to suit riders who might not be confident using gears just yet or simply if your little one are a little too rough with their bike. although most 20inch bikes come with a gear guard to protect the moving components from knocks and bumps
Geared: For the most part 20 inch wheel bikes are supplied with gear systems. usually 5-6 speed this helps introduce young riders to the gear combinations on future bikes. Riders at this age can start to go over more varied terrain and gears help hugely with the change in gradients.
Suitable for ages 8-9
120 – 135cm
This is the biggest conventional children’s bike although the wheels are only 2 inch smaller than a conventional 26 inch mountain bikes, however the frames are specifically designed to allow lower stand over height. The main advantage of this size is that bigger wheels roll more efficiently. 24 inch wheel bikes usually have a front and rear mech that give a wider range of gear combinations and better efficiency over distance.
Suitable for ages 9-11
135 – 145cm