First Look at Shimano RX910 S-PHYRE Gravel Shoes: With Revolutionary Pontoon Cleat System

shimano rx910 gravel shoe review — Shimano RX910 Gravel Shoe

A new shoe with Revolutionary Pontoon Cleat System

Designed from the ground up with the help of SHIMANO pro gravel athletes, the RX910 delivers road-level power transfer, off-road capability, and all-day comfort.

Shimano have designed this shoe to deliver road-level power transfer, off-road capability, and all-day comfort. The latter, you cannot put a price on.

The high end racing angle of this shoe may not appeal to everyone, but it may appeal to racers for certain, and those who like to ride fast with their mates from time to time. You may be thinking, hang on, this could be marketing BS… why don’t you just use a Road or MTB shoe?

A certain professional rider has been working with Shimano dialing this shoe in. They have clearly stated racer types need a light and stiff shoe with a solid contact patch for steady power transfer, and the ability to go hike-a-biking when things get really dodgy.

First Look at Shimano RX910 Video

Alternative Video Link for those reading via email subscription

The idea of this shoe it not to be a compromise between Road and MTB, it’s an entirely new shoe designed from the ground up.

Featuring a new and revolutionary pontoon cleat system. To quote Shimano, “This new feature includes a pair of modular, replaceable TPU contact blocks that dramatically improve the shoe-to-pedal contact point and optimize power transfer. The system enables a roadshoe-like pedaling interface while maintaining SPD compatibility and off-road functionality.”

“Unlike traditional outsole-mounted contact blocks, the RX910’s pontoons are part of the cleat interface itself. This means they move with your cleat position – vertically or laterally – for consistent support and efficiency, no matter how your cleats are set up. Plus, the pontoons are replaceable, allowing riders to start every race or ride with a solid shoe-pedal interface.”

“The RX910 is ideally paired with SHIMANO SPD pedals. Best matches include the PD M9200 and PD-M8100 for seamless power delivery and dual-sided entry.”

Key Features

Stiff Carbon Midsole (Stiffness Rating 12/12): SHIMANO’s stiffest sole for maximum power transfer.
Seamless Midsole Construction: Reduces stack height and improves foot stability.
Dual Drainage Holes: Drain water when a river crossing or a rainy day hits, and provide ventilation during hot rides.
TPU Lugged Outsole: Lightweight lugs shed mud while providing ample traction for off-the-bike technical terrain.
Anti-Twist Stabilizer Heel Cup: Keeps your foot locked in during explosive sprints and long efforts.
Dual BOA® fit system Li2 Dials: Micro-Adjustable fit and secure closure on the fly.
Surround Wrapping Upper: Comfortable, breathable, and built for long-haul durability.