Children's bikes are generally measured by wheel size, rather than by frame size. Remember children do grow very quickly and you need to take this into consideration when buying a kids bike, However, if you buy a bike that is simply too big for your child, you will compromise your child's safety, and ultimately discourage your child from cycling.
Age of Child
Wheel Size
3 Years
12"
4 Years
14"
5 Years
16"
6 Years
18"
7/8 Years
20"
8/10 Years
24"
Which Size Bike Do I Require?
Adults bikes and those for 10/11 years and over, are generally measured by frame size. This is normally the measurement between the centre of the bottom bracket to the top of the seat tube.
The electronic unit switches automatically from dynamo battery to battery power source at standstill or low speed and back to dynamo as soon as bike is up to speed
Full light output from tail light beginning right from the first pedal stroke
100% Light output throughout standstill time
With 2 ultra-bright wide angle LED with a useful life of 100,00 hours
Parking light function stays on for about 5 minutes after which the light is switched off automatically
The parking light can be switched off immediately by pressing an additional button upon completing a tour