What Size of Bike Do I Need?

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What Size of Bike Do I Need?

Many people are now thinking about cycling, and one of the things that puzzle people is bike sizing. The usual answer to go down to your local bike shop and get advice might not be practical or available to you just now. We thought we'd create some simple charts to help point you in the right direction.

There are a couple of points to make here. Most manufacturers will be using similar sizes as we have listed, but t is always worth double-checking a manufacturer's website just to be on the safe side.

The second is, to be honest about your height, I've seen many people who claim they are 6ft tall but in reality are 5ft 9.

The next thing is if you're in between sizes, go down a size. It is easier to make a smaller bike bigger, but without breaking out a hacksaw and welding equipment, it is harder to make a bike that is too big the correct size.

Hybrid bike sizing chart

Your height 

Your leg inseam 

Suggested Frame Size 

Feet/Inches 

Centimetres 

Inches 

Centimetres 

Inches 

Size 

4`10”-5`1” 

147-155 cm 

24-29” 

61-73 cm 

14” 

XS 

5`1-5`5 

155-165 cm 

25-30” 

63-76 cm 

15” 

S 

5`5-5`9 

165-175 cm 

26-31” 

66-78 cm 

16” 

M 

5`9-6`0 

175-183 cm 

27-32 

68-81 cm 

17″ 

L 

6`0-6`3 

183-191 cm 

28-33 

71-83 cm 

18″ 

XL 

6`1+ 

191 cm + 

29”+ 

73 cm+ 

19″ 

XXL+ 

Mountain bike sizing chart

Your height 

Your leg inseam 

Suggested frame size 

Feet/Inches 

Centimetres 

Inches 

Centimetres 

Inches 

Size 

4`10”-5`1” 

148-158 cm 

24-29” 

61-73 cm 

< 14″ 

XS 

5`1″-5`5″ 

158-168 cm 

25-30” 

63-76 cm 

15” / 16″ 

S 

5`5″-5`9″ 

168-178 cm 

26-31” 

66-78 cm 

16” / 17″ 

M 

5`9″-6`0″ 

178-185 cm 

27-32” 

68-81 cm 

17″ / 18″ 

L 

6`0″-6`3″ 

185-193 cm 

28-33” 

71-83 cm 

18″ / 19″ 

XL 

6`1″+ 

193 cm+ 

29”+ 

73 cm+ 

20”+ 

XXL+ 

 

Road/gravel bike sizing chart

Your height 

Your leg inseam 

Suggested frame size 

Feet/Inches 

Centimetres 

Inches 

Centimetres 

Centimetres 

Size 

4`10”-5`1 

148-152 cm 

24-29” 

61-73 cm 

47-48 cm 

XXS 

5`1″-5`5 

152-160 cm 

25-30” 

63-76 cm 

49-50 cm 

XS 

5`5″-5`9 

160-168 cm 

26-31” 

66-78 cm 

51-54 cm 

S 

5`9″-6`0 

168-175 cm 

27-32” 

68-81 cm 

54-56 cm 

M 

6`0″-6`3 

175-183 cm 

28-33” 

71-83 cm 

58-60 cm 

L 

6’1”+ 

183-191 cm 

29”+ 

73 cm+ 

62 cm+ 

XL+ 

 


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