The Shimano RC903S S-Phyre is Shimano’s flagship men’s road racing shoe, offered in a Special Edition colorway for riders who want elite-level performance with distinctive style. Engineered for top-tier racing and high-intensity training, it combines an ultra-stiff carbon outsole, a refined wraparound upper, and dual BOA® Li2 dials to deliver exceptional power transfer and precise fit.
Key Features
- Special Edition (S) colorway with uncompromising S-Phyre race performance
- Wraparound upper construction minimizes overlap and pressure points
- Dual BOA® Li2 dials provide precise, low-profile micro-adjustment
- Ultra-stiff carbon outsole maximizes power transfer for sprinting and climbing
- Integrated heel cup enhances stability during hard efforts
- Lightweight, breathable upper balances support with all-day comfort
Specifications
| Intended Use | Road racing, high-performance training |
| Upper | Synthetic leather with wraparound construction |
| Closure System | Dual BOA® Li2 dials |
| Outsole | Carbon fiber composite |
| Stiffness Index | 12 (Shimano scale) |
| Cleat Compatibility | 3-bolt road (SPD-SL / Look-style) |
| Approx. Weight | ~233g per shoe (EU 42) |
| Width | Standard |