Shimano S-Phyre RC903PWR White

Cycling Shoes (Race) Shimano S-Phyre RC903PWR White

The Shimano S-Phyre RC9PWR - White Exceptional road shoes, developed specifically for powerful sprinters, pisters and counter-la-watch specialists looking for any competitive advantage. The most radical version of the S-Phyre range, they still repel the limits of power transfer, stability and accuracy.

With maximum stiffness, an explosive-oriented design and a distinctive design, the RC903PWRs are addressing elite cyclists and demanding competitors who want to convert each watt into pure speed.

Power-oriented design

Stretch resistant microfiber stem

The microfiber, breathable and stretch resistant synthetic leather upper, strongly holds the foot in place even during the most violent accelerations. It limits the parasitic movements to maximize the effectiveness of the pedaling.

Wrapping structure and fit glove fit

The upper part of the intermediate sole integrates with the tab to wrap the foot as a glove. This design ensures exceptional stability and homogeneous maintenance over the entire surface of the foot.

Exclusive crystal finish

The color change crystal finish on the outer sole and heel confers a unique visual identity, while highlighting their ultra-high range positioning.

Adjustment and maintenance of professional level

Boa® Fit System Li2 Optimized for Power

The BOA® FIT SYSTEM tightening system with LI2 metal disk, combined with a PowerZone lacing guide and a forefoot holding strip, reduces the internal footing of the foot and directly improves power transmission.

Heel with anti-torsion stabilization

The external heel bowl incorporates an anti-torsion stabilization system that locks the foot in an optimal position. It promotes explosive accelerations and total high-speed control.

Replaceable heel pad

The replaceable heel pad improves the durability of the shoe and maintains a specific long-term maintenance.

Maximum power transmission

Carbon sole with low height

The composite carbon composite midsole, associated with a small sole height, stabilizes the foot and optimizes power transfer. Each pedal stroke is direct, without loss of energy.

Stiffness index Shimano

Stiffness index Shimano : 12, the highest in the range, designed for explosive efforts, sprints and very high level competition.

Pedal compatibility

SPD-SL compatibility

The Shimano S-Phyre RC903PWR are compatible with SPD-SL holds, offering a wide support surface and a safe connection with the pedal, ideal for extreme pedal loads.

Recommended pedals

• NA-r9100

Shimano Dynalast Technology

Principle

Shimano Dynalast technology is based on an optimized anatomical shape that improves the contact between the foot and the pedal while respecting the natural alignment of the foot.

Benefits for use

It reduces muscle fatigue, improves heel stability and guarantees maximum pedaling efficiency, even during short and intense efforts.

Technical characteristics

General information

• Model: SH-RC903PWR
• Product Name: S-Phyre RC903 PWR
• Segment / Category: Road
• Year Model: 2025
• Year of alignment: 2025
• Sex: Man

Construction

• Closing: Boa® Fit System with LI2 disc and PowerZone lacing guide
• Seamless intermediate structure
• Specific zones by function
• Anti-torsion heel stabilizer
• External heel bowl
• Technology: Shimano Dynalast
• Silvadur® antibacterial treatment

Outsole

• Intermediate sole: carbon fiber composite
• Outdoor sole: TPU (coating)
• Insole: High density bowl insole with adaptable plantar reinforcements

Compatibility holds

• SPD-sl

Rigidity

• Stiffness index Shimano : 12

Weight (kg)

• 250 g in size 42

Available sizes

From 36 to 48, standard and wide versions according to sizes

In summary

The Shimano S-Phyre RC903PWR are ultra-specialized road shoes, designed for sprints and competitors looking for absolute power transmission, irreproachable stability and extreme precision adjustment. A model without compromise, thought to win where each watt account.