Shimano S-Phyre RC903 Bleues

Cycling Shoes (Race) Shimano S-Phyre RC903 Bleues

The Shimano S-Phyre RC9 - Bleues represent the culmination of the know-how Shimano In terms of high performance road shoes. A true flagship model of the S-Phyre range, they have been developed to offer even more comfort, lightness and precision, while pushing the limits of power transfer.

Destined for the most high-level cyclists and the most demanding competitors, the RC903 combine an ultra-sophisticated adjustment, maximum rigidity and exemplary stability, even during the most explosive efforts.

Design and DNA S-Phyre

High-end microfiber stem

The microfiber, fine and breathable synthetic leather upper, ensures optimal fit and durable comfort throughout the exit. Its lightened design reduces the overall weight of the shoe without compromising the maintenance.

360 ° wrapping structure

The 360 ° wrapping stem perfectly matches the morphology of the foot and creates a real cocoon. This design ensures a homogeneous distribution of pressure and exceptional stability, regardless of the intensity of the effort.

Clean and functional design

The crossed lacing structure, elegant and discreet, effectively secures the forefoot while maintaining a low and aerodynamic profile, faithful to the DNA Racing S-Phyre.

Adjustment and Precision Maintenance

Boa® Fit System Double Li2

The BOA® FIT SYSTEM tightening system with light and discreet Double Disk, allows fast and extremely precise micro-adjustments. It offers a personalized, instant and perfectly distributed fit on the entire foot.

Anti-torsion heel shell

The high-end heel hull incorporates an anti-torsion stabilization system. It maintains the foot in an optimal position, improves control and promotes powerful and controlled accelerations.

External heel bowl and replaceable pad

The external heel bowl associated with a replaceable heel pad reinforces the back stability of the foot while improving long-term durability and comfort.

Power transmission and maximum rigidity

Dynalast Level 12 carbon sole

The carbon fiber composite midsole, associated with Shimano Dynalast technology, offers the highest level of rigidity of the range Shimano. With a stiffness index 12, it guarantees a direct and lossless power transfer.

Hollow channel and optimized structure

The hollow channel integrated into the sole helps reduce weight while improving the stability and effectiveness of the pedaling, even under maximum load.

Pedal compatibility

SPD-SL compatibility

The Shimano S-Phyre RC903 are compatible with SPD-SL holds, providing a wide support surface and optimal power transmission, perfectly adapted to the road competition.

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, improve stability of the heel and optimize pedaling efficiency, especially during sprints, reminders and prolonged efforts.

Technical characteristics

General information

• Model: SH-RC903
• Product Name: S-Phyre RC903
• Segment / Category: Road
• Year Model: 2023
• Year of alignment: 2025
• Sex: Man

Construction

• Closing: Boa® Fit System with Double Disk Li2
• 360 ° enveloping upper
• Seamless intermediate structure
• Specific zones by function
• Anti-torsion heel stabilizer
• 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)

• 225 g in size 42

Available sizes

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

In summary

The Shimano S-Phyre RC903 embody excellence in road shoes. Ultra-rigid, lightweight and perfectly adjusted, they are designed for cyclists and competitors who require the highest level of performance, precision and reliability on the road.