Synchro One CarbonShell™ cycling shoe size chart
Synchro One CarbonShell™ cycling shoe last
How to Choose Your Size:
Scan Your Feet
Follow the steps in the app. You'll receive a detailed 3D profile of both feet.
Ask our CádoWiki Live: Instant Expert (in the bottom-right corner) for your best shoe size, or:
Use the Cádomotus Size Chart
Our chart shows the length of the last—the mold your shoe is built on—not the length of your foot. One last length fits a range of foot lengths, so look up your measured foot length in the Fits foot length column and read off your size.
➤ On the edge between two sizes? Your width and instep bracket decide: wider or higher volume → take the larger size.
Understand Width and Instep Height (1–5 Scale)
The app shows both measurements on a 1–5 scale:
- 1 = very narrow / very low → choose the Narrow version
- 2 = slightly narrow / slightly low → standard width + heat molding for fine-tuning
- 3 = average → standard width
- 4 = slightly wide / slightly high → standard width + heat molding for fine-tuning
- 5 = very wide / very high → choose the Wide version
Special Fit Cases
-
Narrow or wide feet?
Width Bracket 1 → select the Narrow version.
Width Bracket 5 → select the Wide version.
Borderline wide (Bracket 4)? You can also try sizing up one size for more space before choosing Wide. -
Low instep?
A low instep may feel loose or unsupported. This is common among elite triathletes who often use orthopedic insoles for volume control and support.
✔️ We recommend using performance insoles to optimize fit. -
High instep?
We do not offer high-volume shoes. Riders with a high instep should use heat molding and fine-tune strap tension for comfort and circulation. Replacing the standard insole with a very thin insole can also improve the fit—bonus: it lowers the stack height.
Following these guidelines ensures a snug yet comfortable fit for optimal performance.
| Last length (mm) / inside length | European size | Fits foot length |
|---|---|---|
| 230 | 36 | 221–227 mm |
| 237 | 37 | 228–234 mm |
| 243 | 38 | 235–240 mm |
| 250 | 39 | 241–247 mm |
| 257 | 40 | 248–254 mm |
| 263 | 41 | 255–260 mm |
| 270 | 42 | 261–267 mm |
| 277 | 43 | 268–274 mm |
| 283 | 44 | 275–280 mm |
| 290 | 45 | 281–287 mm |
| 297 | 46 | 288–294 mm |
| 303 | 47 | 295–300 mm |
| 310 | 48 | 301–307 mm |
| 317 | 49 | 308–314 mm |