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Discount Bicycles Rough Guide To Frame Sizing

Getting the correct frame size is important.  However there is room for manoeuvre, as saddle and handlebar heights and positions can always be adjusted.  Have a look at our rough guide to frame sizing.  If after reading this guide you are still unsure, but would still like to make an order,  phone us on 0845 166 8284, and we will be happy to advise.

Which size bike does my child require?

Age of Child Frame size Wheel Size Typical Size
1 to 2 years 6 12  6/11
2 to 3 years 7 to 9 14 7/14
3 to 4 years 8 to 10 16 8/16
4 to 5 years 9 to 11 18 9/18
6 to 9 years 10 to 13 20 11/20 or 13/20
10 to14 years 11 to 14 24 14/24

Which size bike do I require?

Riders Height
In Feet & inches
Mainly Off Road Use
Frame Size required 
Mainly On Road Use
Frame Size required 
Road Racing Bikes
Frame Size required 
to 5 feet   to 14 inches to 16 inches 50cm 
5 feet to  5 feet 4  14 to 16 inches 15 to 17 inches 50 to 53cm 
5 feet 4 to  5 feet 8 16 to 18 inches 17 to 19 inches 53 to 56cm 
5 feet  8 to  6 feet 18 to 20 inches 19 to 21 inches 56 to 59cm 
6 feet  +   20+ inches 21+ inches 59cm + 

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