SHIMANO RC903PWR Road Shoes White, 40

S-phyre Racing Shoes Built For Powerful Sprinters Seeking Every Edge. Features: - Race-tuned closure system with a lavish BOA® Li2 metal dial, power boost guide, and toe strap reduce foot movement and enhance power transmission. - Race confidently while you let those behind you admire the dazzling color-shifting crystal finish on the outsole and heel. - Breathable, stretch-resistant upper keeps feet stably in place to improve power transfer. - Heel cup with anti-twist stabilization secures optimal foot positioning for intense acceleration and high tempo cadences. - Midsole-wrapping upper blends with the tongue to form a glove-like fit for remarkable pedaling stability. - Low stack height midsole stabilizes foot and optimizes power transfer efficiency. - Integrated seamless midsole and upper construction set a new level of fit, stability and lightweight performance. Specifications: - Stiffness index: 12 - Best match pedal: PD-R9100 - Features Wider cleat adjustment range: Yes - Features Seamless midsole structure: Yes - Features Function specific zones: Yes - Features Anti-twist stabilizer heel cup: Yes - Features External heel cup: Yes - Features Replaceable heel pad: Yes - Features Hollow channel: Yes - Features Carbon sole/Mid sole: Yes - Technology SHIMANO DYNALAST: Yes - Technology Silvadur®: Yes - Closure: BOA® Fit System featuring Dial Li2, Powerzone lace guide - Upper Material: Microfiber Synthetic Leather+Mesh - Outsole Material: TPU (cover) - Midsole Material: Carbon fiber composite - Standard insole: High density cup insole with adaptable arch pads - Actual weight: 250g Technology: Xc & Cyclo-cross Race- Tuned Upper: - Lightweight cross country and cyclo-cross race-tuned upper offers breathable comfort in severe weather and terrain. Heel Cup With Anti-twist Stabilization: - Heel cup with anti-twist stabilization secures optimal foot positioning for intense acceleration and high-tempo cadences. Robust & Precise Micro- Adjustments: - Dual low-profile BOA® Li2 dials allow precise micro-adjustment, with the shielded BOA® Li2 Type F bottom dial protected against accidental releases from impacts. Sleek, Low-profile Crossover Lacing Pattern: - Sleek, low-profile crossover lacing pattern elegantly secures the forefoot. Lightweight Shimano Ultread® Xc Rubber Outsole Lightweight Shimano: - ULTREAD® XC rubber outsole with a highly technical tread pattern provides exceptional racing grip. Removable Talon-shaped Metal Spikes: - With the included talon-shaped spikes, riders can choose lightweight performance or optimal traction. Low Stack Height Carbon Midsole: - Low stack height midsole stabilizes the foot and optimizes power transfer efficiency.