Shimano revolutionizes gravel with the S-PHYRE RX910 Pontoon cleat system

Shimano unveils a major advancement for gravel competitors with the Pontoon cleat system, integrated into the new S-Phyre RX910 shoes. Designed in collaboration with professional athletes like Pete Stetina, this system redefines gravel standards by combining power transfer worthy of the best road shoes, all-terrain stability, and optimal comfort for long distances.

The Pontoon System: An Innovation at the Heart of Performance

The true game-changer of the S-PHYRE RX910 lies in the Pontoon cleat system, an exclusive innovation developed by Shimano to meet the unique demands of gravel. Unlike traditional cleat systems, the Pontoon integrates modular, replaceable TPU contact blocks that optimize the interface between the shoe and the pedal. This design significantly improves power transfer while maintaining compatibility with SPD pedals, essential for technical and muddy sections.

« The Pontoon system is what makes this shoe exceptional », explains Pete Stetina, a professional gravel cyclist involved in the development of the RX910. « It offers the stability and efficiency of a road shoe, while retaining the mud shedding and quick engagement of SPD pedals, which are essential in gravel. »

Pontoon blocks are distinguished by their direct integration into the cleat interface, allowing for personalized adjustment (vertical or lateral) for constant stability, regardless of cleat position. Furthermore, their replaceable nature ensures an always optimal shoe-pedal interface, even after demanding races.

Paired with Shimano SPD pedals like the PD-M9200 or PD-M8100, the Pontoon system ensures reliable engagement and smooth power transfer, even in the most technical conditions.

A Shoe Tailored for Gravel, Without Compromise

While the Pontoon system is the star of the innovation, the S-Phyre RX910 are not limited to their cleat system. Designed specifically for gravel, they address the duality of this discipline: pedaling efficiency over long distances and off-bike grip on varied terrain. Here are the key features of the RX910:

Ultra-rigid carbon sole (index 12/12) : Shimano’s most rigid sole for maximum power transfer, comparable to high-end road shoes.
Midsole-less construction : reduces sole height for improved stability and increased comfort.
Dual drainage port : drains water during river crossings while ensuring optimal ventilation in hot weather.
Serrated TPU outsole : offers light and effective traction on muddy or technical terrain, without compromising mud shedding.
Anti-twist heel stabilizer : keeps the foot in place during sprints or prolonged efforts.
Dual BOA® Li2 system : allows for precise and rapid adjustment for a secure fit.
Wraparound upper : comfortable, breathable, and built to last.

Tested by Pros, Designed for Competitors

The RX910 were developed with athletes like Pete Stetina, who understands the challenges of gravel: long distances, technical terrain, and unpredictable conditions. « In gravel, you need a shoe that combines lightness, rigidity, and grip », explains Stetina. « The RX910, with the Pontoon system, make no compromises. They allow for efficient pedaling while managing sections where you have to carry the bike or run in the mud. »

This shoe is not a mere adaptation of a road or mountain bike model, but a dedicated gravel solution, the result of decades of Shimano’s expertise in cycling technologies.

Technical Specifications

Weight: 304 g (size 43)
Colors: Black, white, blue, navy blue
Stiffness: Index 12/12
Sizes: Standard (38-48), half sizes (41.5-46.5), wide (40-48)
Recommended retail price: €399.99
Compatibility: optimized for Shimano SPD pedals (PD-M9200, PD-M8100).