Shimano S-Phyre RC903 Road Cycling Shoes – Ultra-Lightweight, Pro-Level Performance
Engineered for Grand Tour victories, the Shimano S-Phyre RC903 (RC9) delivers unmatched power transfer, precision fit, and elite-level comfort.
Built on the legacy of Shimano’s most advanced road shoe, the RC903 takes performance to the next level with a refined upper construction and weight savings of 20g per pair compared to its predecessor, the RC902. Designed for professional cyclists and performance-focused riders, this shoe is built to optimize every watt of effort on race day.
Featherweight Efficiency Meets Race-Ready Comfort
- Upgraded microfibre synthetic leather upper moulds to the foot for a glove-like fit and reduced pressure points.
- Micro-perforated panels enhance airflow for superior ventilation during intense efforts.
- New upper pattern design improves overall foot support while shedding weight for optimal performance.
Precision Fit with Dual BOA® Li2 Dials
- Dual BOA® Li2 dials allow micro-adjustments on the fly for a secure, aerodynamic fit.
- 360° surround wrapping upper ensures a sock-like fit for enhanced stability and reduced movement inside the shoe.
Maximise Power with Every Pedal Stroke
- Seamless midsole construction eliminates the traditional lasting board, lowering stack height and increasing power efficiency.
- Proven RC902 full carbon outsole offers exceptional stiffness (12/12 rating) for maximum energy transfer.
- Anti-twist heel cup stabiliser prevents unwanted movement and boosts performance during high-cadence efforts.
Performance Specs
- Weight: Just 225g (Size 42)
- Stiffness Index: 12/12 – Maximum stiffness for elite power delivery
Shimano S-Phyre RC903 – The Ultimate Road Shoe for Cyclists Who Demand Speed, Comfort, and Precision.