Whats the right road bike size for me?

This handy chart should show you the right size of road bike you need based on your height. Measure your height accurately and always check the manufacturer’s measurements too.

Rider HeightSuggested Road Bike Size
Feet & InchesCentimetresFrame Size (cm)Frame Size
4'10" - 5'0" 148cm - 152cm 47cm - 48cm XX-Small
5'0" - 5'3" 152cm - 160cm 49cm - 50cm X-Small
5'3" - 5'6" 160cm - 168cm 51cm - 53cm Small
5'6" - 5'9" 168cm - 175cm 54cm - 55cm Medium
5'9" - 6'0" 175cm - 183cm 56cm - 58cm Large
6'0" - 6'3" 183cm - 191cm 58cm - 60cm X-Large
6'3" - 6'6" 191cm - 198cm 61cm - 63cm XX-Large

Women's road bike sizes

Many bikes are designed with the female form in mind. So they accommodate a shorter reach, narrower shoulders and smaller hands. But there’s absolutely no reason why a woman can’t ride a unisex or male bike, so don’t restrict yourself – just make sure you test ride it first.

Rider HeightSuggested Women's Road Frame Size
Feet & InchesCentimetresFrame Size (cm)Frame Size
4'10" - 5'1" 147cm - 155cm 44cm - 46cm XX-Small
5'1" - 5'3" 155cm - 160cm 47cm - 49cm X-Small
5'3" - 5'5" 160cm - 165cm 50cm - 52cm Small
5'5" - 5'8" 165cm - 172cm 53cm - 55cm Medium
5'8" - 5'10" 172cm - 180cm 56cm - 57cm Large

Whats the right MTB size for me?


This handy chart should show you the right size of MTB you need based on your height. Measure your height accurately and check the manufacturer’s measurements too.

Rider HeightSuggested Mountain Frame Size
Feet & InchesCentimetresFrame Size (inches)Frame Size (cm)Frame Size
4'10" - 5'2" 148cm - 158cm 13" - 14" 33 - 37 X-Small
5'2"" - 5'6"" 158cm - 168cm 15" - 16" 38 - 42 Small
5'6" - 5' 10" 168cm - 178cm 17" - 18" 43 - 47 Medium
5'10" - 6'1" 178cm - 185cm 19" - 20" 48 - 52 Large
6'1" - 6'4" 185cm - 193cm 21" - 22" 53 - 57 X-Large
6'4" - 6'6" 193cm - 198cm 23" - 24" 58 - 61 XX-Large

Women's MTB sizing


Women’s MTBs tend to be shorter in length, have narrower handlebars and smaller frame sizes. They also have specific saddles and often have their own colour scheme too. Like other MTBs, these designs are measured in the same way (from the centre of the bottom bracket to the top of the seat tube) but there’s no reason why you shouldn’t try a unisex MTB.

Rider HeightSuggested Women's Mountain Frame Size
Feet & InchesCentimetresFrame Size (inches)Frame Size
4'10" - 5'2" 148cm - 158cm 13" - 14" X-Small
5'2" - 5'6" 158cm - 168cm 15" - 16" Small
5'6" - 5' 10" 168cm - 178cm 17" - 18" Medium
5'10" - 6'1" 178cm - 185cm 19"+ Large

What’s the right hybrid bike size for me?

This handy chart should show you the right size of hybrid bike you need based on your height. Measure your height accurately and check the manufacturer’s measurements too. Always make sure you’re able to stand over the frame with a minimum 2cm gap between you and the top tube.


Rider HeightSuggested Hybrid Frame Size
Feet & InchesCentimetresFrame Size (inches)Frame Size (cm)Frame Size
4'10" - 5'2" 148cm - 158cm 13" - 14" 33 - 37 X-Small
5'2"" - 5'6"" 158cm - 168cm 15" - 16" 38 - 42 Small
5'6" - 5' 10" 168cm - 178cm 17" - 18" 43 - 47 Medium
5'10" - 6'1" 178cm - 185cm 19" - 20" 48 - 52 Large
6'1" - 6'4" 185cm - 193cm 21" - 22" 53 - 57 X-Large
6'4" - 6'6" 193cm - 198cm 23" - 24" 58 - 61 XX-Large

Women's hybrid bikes

Women's hybrids differ to male/unisex hybrids. They tend to be shorter in length with narrower handlebars and smaller frame sizes. In some cases they’ll have a step through frame where the top tube drops down, meeting the seat tube much lower. In some cases a male/unisex hybrid may suit you better.

Rider HeightSuggested Women's Hybrid Frame Size
Feet & InchesCentimetresFrame Size (inches)Frame Size
4'10" - 5'2" 148cm - 158cm 13" - 14" X-Small
5'2"" - 5'6"" 158cm - 168cm 15" - 16" Small
5'6" - 5' 10" 168cm - 178cm 17" - 18" Medium
5'10" - 6'1" 178cm - 185cm 19"+ Large

What’s the right TT bike size for me?


This handy chart shows you the right size of TT bike you need based on your height. Measure your height accurately and check the manufacturer’s measurements too.

Rider HeightSuggested Triathlon Frame Size
Feet & InchesCentimetresFrame Size (cm)Frame Size
4'10" - 5'0" 148cm - 152cm 47cm - 48cm XX-Small
5'0" - 5'3" 152cm - 160cm 49cm - 50cm X-Small
5'3" - 5'6" 160cm - 168cm 51cm - 53cm Small
5'6" - 5'9" 168cm - 175cm 54cm - 55cm Medium
5'9" - 6'0" 175cm - 183cm 56cm - 58cm Large
6'0" - 6'3" 183cm - 191cm 58cm - 60cm X-Large
6'3" - 6'6" 191cm - 198cm 61cm - 63cm XX-Large

What’s the right BMX bike size for me?


This handy chart should show you the right BMX bike you need based on your height/age. Measure your height accurately and check the manufacturer’s measurements too. Always make sure you’re able to stand over the frame with a minimum 2cm gap between you and the top tube. As a minimum you will need at least a 23" inside leg to be able to stand over a full size BMX bike.

Rider HeightSuggested BMX Size
Feet & InchesCentimetresApproximate AgeWheel Size
3'7" - 4'0" 110cm - 122cm 5 - 7 years 16"
4'0" - 4'10" 122cm - 147cm 7 - 11 years 18"
4'10" - 6'4" 147cm - 193cm 11+ years 20"

What size kid's bike do i need?

This handy chart should show you the right bike for your child, based on age, height and wheel size. In order to accurately match the correct bike for your child, it’s essential you measure their height accurately.

Rider Height
Feet & InchesCentimetresAge RangeSuggested Wheel
3' - 3'5" 90cm - 105cm 2 - 4 years 12"
3'5" - 3'9" 105cm - 118cm 4 - 7 years 14-16"
3'9" - 4'5" 118cm - 135cm 7 - 10 years 18-20"
4'5" - 5' 135cm - 150cm 10 - 13 years 24"
5'+ 150cm+ 13 years + 26-27.5" & 700c