Choose What size bike and the important things to look at.


What size bike do I need? The perfect size for the right ride:

The most important thing is to buy the right bicycle size frame for you.

Unlike children’s bikes, there are no standard guidelines on different size frames for adults.

the size of frame depends on the type of bike you want, and the type of riding you will be doing.

If you need to stop quickly you will be glad that you chose a frame size that gave you clearance from the cross bar of at least an inch or more. For mountain biking you will need even more clearance since you will be putting your feet down quite a lot.

The cross bar is the main tube on the bicycle frame that rums from the saddle to the handlebars. traditionally women’s frames do not have a cross bar or is lower than in men’s bikes.

 If for example you intend to use your bicycle to get to work it’s worth finding out if your employer runs, or is willing to set up , a cycle to work scheme. you could save around 40% on the price of your bike and accessories and also pay for them in easy stages.

As the choice of bikes available to you will vary depending on your employers scheme provider make sure you are still able to buy the right bike for you.

Here you can get an idea of witch is your right size!

Mountain bike sizing chart (hardtail & full suspension)

Rider Height
Frame Size Suggested
Feet and Inches
Centimetres
Inches
Size
4′ 10″ – 5′ 2″
148 – 158
13 – 14
XS
5′ 2″ – 5 ‘6″
158 – 168
15 – 16
S
5′ ‘6″ – 5’ 10″
168 – 178
17 – 18
M
5′ 10″ – 6′ 1″
178 – 185
19 – 20
L
6′ 1″ – 6′ 4″
185 – 193
21 – 22
XL
6 ‘4″ – 6’ 6″
193 – 198
23 – 24
XXL

Women’s mountain bike sizing chart (hardtail & full suspension)

Rider Height Frame Size Suggested
Feet and Inches Centimetres Inches Size
4′ 10″ – 5′ 2″ 148 – 158 13 – 14 XS
5′ 2″ – 5 ‘6″ 158 – 168 15 – 16 S
5′ 6″ – 5′ 10″ 168 – 178 17 – 18 M
5′ 10″ – 6′ 1″ 178 – 185 19+ L
Please note
Women’s mountain bikes have specific differences to men’s mountain bikes.
Road bike sizing chart
Rider Height Frame Size Suggested
Feet and Inches Centimetres Centimetres Size
4′ 10″ – 5 ‘0″ 148 – 152 47 – 48 XXS
5′ 0 “- 5′ 3” 152 – 160 49 – 50 XS
5′ 3″ – 5′ 6″ 160 – 168 51 – 52 – 53 S
5 6″ – 5′ 9″ 168 – 175 54 – 55 M
5′ 9″ – 6′ 0″ 175 – 183 56 – 57 – 58 L
6′ 0″ – 6′ 3″ 183 – 191 58 – 59 – 60 XL
6′ 3″ – 6′ 6″ 191 – 198 61 – 62 – 63 XXL
Please note
The sloping geometry found on Colnago road bikes are 4cm smaller than traditional geometry. For example a 56cm Traditional frame will be equal to a 52cm sloping frame

Women’s road bike sizing chart

Rider Height Frame Size Suggested
Feet and Inches Centimetres Centimetres Size
4′ 10″ – 5′ 1″ 147 – 155 44 – 45 – 46 XXS
5′ 1″ – 5′ 3″ 155 – 160 47 – 48 – 49 XS
5′ 3″ – 5′ 5″ 160 – 165 50 – 51 – 52 S
5′ 5″ – 5′ 8″ 165 – 172 53 – 54 – 55 M
5′ 8″ – 5′ 10″ 172 – 180 56 – 57 L

Hybrid bike sizing chart

Rider Height Frame Size Suggested
Feet and Inches Centimetres Inches Size Centimetres
4′ 10″ – 5′ 1″ 147 – 155 13 – 14 XS 47 – 49
5′ 1″ – 5′ 5″ 155 – 165 15 – 16 S 50 – 52
5′ 5″ – 5′ 9″ 165 – 175 17 – 18 M 53 – 54
5′ 9″ – 6′ 0″ 175 – 183 19 -20 L 55 – 57
6′ 0″ – 6′ 3″ 183 – 191 21 – 22 XL 58 – 61
6′ 3″ – 6′ 6″ 191 – 198 23 – 25 XXL 61 – 63

Triathlon and Time Trial bike sizing chart

Rider Height Frame Size Suggested
Feet and Inches Centimetres Centimetres Size
5′ 0″ – 5′ 3″ 152 – 160 49 – 50 XS
5′ 3″ – 5′ 6″ 160 – 168 51 – 52 S
5′ 6″ – 5′ 9″ 168 – 175 53 -54 M
5′ 9″ – 6′ 0″ 175 – 183 55 – 56 L
6′ 0″ – 6′ 3″ 183 – 191 57 – 58 XL
6′ 3″ – 6′ 6″ 191 – 198 60 – 61 XXL

Jump and Trial bike sizing

As a general rule Jump and Trial bikes are one size fits all; catering for people from heights of 4′ 10″ – 6′ 4″ (148cm – 193cm). There are a few exceptions to this rule where size options are offered, if this is the case please contact one of the experts in our sales team on +44(0)1293 574905.

Folding bike sizing

As a general rule folding bikes are one size fits all catering for people from heights of 4′ 10″ – 6′ 4″ (148cm – 193cm).
Please note
Brompton bikes require that you fit a telescopic seatpost if your inside leg is greater than 35 inches (89cm).

BMX bike sizing chart

Rider Age or Height Wheel Size Suggested
Feet and Inches Centimetres Age Inches
3′ 7″ – 4′ 0″ 110 – 122 5 – 7 years 16
4′ 0″ – 4′ 10″ 122 – 147 7 – 11 years 18
4′ 10″ – 6′ 4″ 147 – 193 11+ years 20

Children’s bike sizing chart

Rider Age or Height Size Suggested
Age Feet and Inches Centimetres
2 – 5 years 2′ 10″ – 3′ 7″ 85 – 110 Runner bikes
2 – 4 years 2′ 10″ – 3′ 4″ 85 – 100 12 inch wheel diameter
3 – 5 years 3′ 1″ – 3′ 7″ 95 – 110 14 inch wheel diameter
5 – 7 years 3′ 7″ – 4′ 0″ 110 – 120 16 inch wheel diameter
7 – 9 years 4′ 0″ – 4′ 5″ 120 – 135 20 inch wheel diameter
9 – 11 years 4′ 5″ – 4′ 9″ 135 – 145 24 inch wheel diameter
11+ years 4′ 9″+ 145+ 26 inch wheel diameter

Trailer bike sizing chart

Rider Age or Height Size Suggested
Age Feet and Inches Centimetres
3 – 5 years 3′ 1″ – 3′ 7″ 95 – 110 20 inch wheel diameter
5 – 9 years 3′ 7″ – 4′ 5″ 110 – 135 24 inch wheel diameter