Road Bike Sizing Guide
Most road bikes come in two styles – racing road bikes (long in the top tube and low at the front for faster riding) and sportive road bikes (which tend to have shorter top tubes and higher front ends for extra comfort). In recent years there's also been a rise in cyclocross bikes, which are for more casual off road rides, and that’s led to the creation of adventure road bikes – a lightweight, drop-bar bike for a mix of terrains, roads and trails. For more information on road bikes and adventure road bikes visit our buying guide.
What's 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. You can also visit us in store to speak to
an
experienced member of staff.
| Rider Height | Suggested Road Bike Size | ||
|---|---|---|---|
| Feet & Inches | Centimetres | Frame Size (cm) | |
| 4'10" - 5'0" | 148cm - 152cm | XX-Small (47cm - 48cm) | View all XX-Small Road Bikes |
| 5'0" - 5'3" | 152cm - 160cm | X-Small (49cm - 50cm) | View all X-Small Road Bikes |
| 5'3" - 5'6" | 160cm - 168cm | Small (51cm - 53cm) | View all Small Road Bikes |
| 5'6" - 5'9" | 168cm - 175cm | Medium (54cm - 55cm) | View all Medium Road Bikes |
| 5'9" - 6'0" | 175cm - 183cm | Large (56cm - 58cm) | View all Large Road Bikes |
| 6'0" - 6'3" | 183cm - 191cm | X-Large (58cm - 60cm) | View all X-Large Road Bikes |
| 6'3" - 6'6" | 191cm - 198cm | XX-Large (61cm - 63cm) | View all XX-Large Road Bikes |
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 Height | Suggested Women's Road Frame Size | ||
|---|---|---|---|
| Feet & Inches | Centimetres | Frame Size (cm) | |
| 4'10" - 5'1" | 147cm - 155cm | XX-Small (44cm - 46cm) | View all XX-Small Bikes |
| 5'1" - 5'3" | 155cm - 160cm | X-Small (47cm - 49cm) | View all X-Small Bikes |
| 5'3" - 5'5" | 160cm - 165cm | Small (50cm - 52cm) | View all Small Bikes |
| 5'5" - 5'8" | 165cm - 172cm | Medium (53cm - 55cm) | View all Medium Bikes |
| 5'8" - 5'10" | 172cm - 180cm | Large (56cm - 57cm) | View all Large Bikes |
How are road bikes measured?
The measurement shown is the distance (in cm) from the centre of the bottom bracket to the top of the seat tube (centre of the top of seat tube). However, some manufacturers measure their bikes slightly differently. Some will measure centre of the BB to the top of the top tube (centre to top) or centre of the BB to the centre of the top tube (centre to centre). And bear in mind that a lot of road bikes have sloping top tubes so the measurements can alter – these are often sized S, M, L and XL.
