The Shimano S-Phyre RC903E Wide is Shimano’s flagship road shoe engineered for elite performance and all-day comfort, now in a wider fit for riders needing extra volume. Designed with a supple microfiber upper, dual Boa® Li2 dials, and an ultralight carbon sole, it delivers exceptional power transfer, precise fit adjustment, and race-proven efficiency.
Key Features
- Wide (E) fit: Expanded forefoot volume and width for enhanced comfort.
- Dual Boa® Li2 dials: Offer micro-adjustable precision for a secure, low-profile fit.
- 360° Surround Wrapping upper: Encloses the foot uniformly for superior support and reduced pressure points.
- Ultralight carbon sole: Shimano’s stiffest sole for maximum power transfer.
- Integrated heel cup: Anti-twist stabilization ensures a locked-in feel during sprints.
- Perforated microfiber synthetic leather: Breathable and form-fitting for pro-level comfort.
- Refined toe box and low stack height: Provide direct pedaling feedback and improved efficiency.
Specs
| Intended Use | Road racing / high-performance training |
| Upper | Perforated microfiber synthetic leather with 360° Surround Wrapping |
| Closure | Dual Boa® Li2 micro-adjustable dials |
| Outsole | Ultralight carbon composite (stiffness index 12) |
| Heel Cup | Integrated, anti-twist stabilization structure |
| Cleat Compatibility | 3-bolt SPD-SL / Look road cleats |
| Weight | ~225 g (per shoe, size 42) |
Fit tip: The RC903E features Shimano’s Wide (E) last with extra forefoot volume for high-comfort performance. Fits true to size for most riders using the same EU size as standard Shimano road shoes.