Road bike frame size by height
| Height (cm) | Height (ft) | Frame (cm) |
|---|---|---|
| 155-160 | 5'1-5'3 | 48-50 |
| 160-168 | 5'3-5'6 | 51-52 |
| 168-175 | 5'6-5'9 | 53-54 |
| 175-183 | 5'9-6'0 | 55-56 |
| 183-190 | 6'0-6'3 | 57-58 |
| 190-198 | 6'3-6'6 | 59-61 |
Mountain bike size
| Height | Size | Frame (in) |
|---|---|---|
| 5'0-5'4 | XS | 13-14.5 |
| 5'4-5'8 | S | 15-16 |
| 5'8-5'11 | M | 17-18 |
| 5'11-6'2 | L | 19-20 |
| 6'2+ | XL | 21-22 |
Kids' bikes by age
| Age | Wheel (in) |
|---|---|
| 2-4 | 12 |
| 4-6 | 16 |
| 6-9 | 20 |
| 9-12 | 24 |
| 12+ | 26 |
A bike helmet should be sized too, and a soft tape helps with inseam.
Frequently asked questions
How do I size by inseam?
Multiply inseam in cm by 0.67 for a road frame.
What if I am between sizes?
Choose the smaller frame and adjust the stem.
Is a 26 inch bike for adults?
Yes, for riders about 12 and up.