For Shimano road shoes, including the S-PHYRE SH-RC903, SH-RC903PWR and SH-RC910. All Shimano shoes use the same sizing, so this one chart covers every model.
How to measure: Stand on a sheet of paper with your heel against a wall. Mark the tip of your longest toe, then measure from the wall to the mark. Measure both feet in the afternoon and use the longer foot.
| EU | US (Men) | Foot length (cm) |
|---|---|---|
| 40 | 7 | 25.2 |
| 40.5 | 7.5 | 25.5 |
| 41 | 7.5–8 | 25.8 |
| 41.5 | 8 | 26.2 |
| 42 | 8.5 | 26.5 |
| 42.5 | 8.5–9 | 26.9 |
| 43 | 9 | 27.2 |
| 43.5 | 9.5 | 27.5 |
| 44 | 10 | 27.8 |
| 44.5 | 10–10.5 | 28.2 |
| 45 | 10.5 | 28.5 |
| 45.5 | 11 | 28.9 |
| 46 | 11–11.5 | 29.2 |
Fit tips
- Cycling shoes should feel snug, with no heel lift and no pressure on your toes. If you're between two sizes, choose the larger one.
- Wide Fit versions are roomier across the forefoot and toe box. They suit riders who find standard race shoes tight.
- If you already ride Shimano shoes, order the same size.
Not sure about your size? Message us before you order and we'll help you choose.