The Shimano S-Phyre XC903 is a flagship XC race shoe built for riders who demand maximum power transfer and precision fit. Designed for elite cross-country and marathon racing, it features an ultra-stiff carbon outsole, a wraparound upper, and dual BOA® Li2 dials to deliver uncompromising efficiency and control when racing at the highest level.
Key Features
- Race-focused fit with low-volume profile for maximum efficiency
- 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
- Lightweight rubber outsole with aggressive tread for off-bike traction
- Reinforced toe protection improves durability in technical terrain
Specifications
| Intended Use | Cross Country Racing, Mountain |
| Upper | Synthetic leather with wraparound construction |
| Closure System | Dual BOA® Li2 dials |
| Outsole | Carbon fiber composite with rubber tread |
| Stiffness Index | 11 (Shimano scale) |
| Cleat Compatibility | 2-bolt SPD-style |
| Approx. Weight | ~310g per shoe (EU 42) |
| Width | Standard |