# Men's Gravel SH-RX9 S-PHYRE Shoe SPD > Shimano Men Gravel SH-RX9 S-PHYRE Shoe SPD - Carbon midsole, Pontoon cleat, BOA Li2 for efficient SPD performance on gravel - Price: 400.00 CHF - Brand: Shimano - Category: Shoes - Availability: in stock - SKU: variant-2757, variant-2756 ## Men Gravel SH-RX9 S-PHYRE Shoe SPD (Shimano SH-RX910) The Shimano S-PHYRE SH-RX910 is the new flagship gravel race shoe, bringing road power to gravel – without compromising on **SPD** functionality or walking comfort. At its core is the new **Pontoon Cleat System**, which increases the contact area between shoe and pedal, significantly boosting stability regardless of cleat position. The seamlessly integrated **carbon midsole** delivers pro-level power transfer, matching the stiffness index of the S-PHYRE road cycling shoes. Secure fit is ensured by two low-profile **BOA Li2** dials, a heel cup with anti-twist protection, and drainage ports for fast water evacuation and additional ventilation. - New **Pontoon Cleat System** with replaceable TPU pontoons for stable, efficient **SPD** performance in any cleat position. - Seamless **carbon midsole** with S-PHYRE road stiffness for immediate power transfer. - Two low-profile **BOA Li2** dials for precise micro-adjustment and a secure fit. - **Anti-twist heel cup** for optimal foot positioning during accelerations and high cadence efforts. - **TPU gravel race outsole** with tread pattern for traction and efficient walking; integrated **drainage ports**. - Approximate weight of 304 g (size 43) and stiffness rating of 12/12 according to manufacturer data and media reports. - Available in standard and **Wide** fit, as well as multiple colourways (including Black, White, Blue, Deep Sea). ## Technical Details and Features The **Pontoon Cleat System** shifts the contact blocks from the sole tread to the cleat interface, allowing the pontoons to follow the cleat position both laterally and vertically – ensuring consistent contact and a smooth pedal stroke. This creates a road-like feel on the pedal with full **SPD** compatibility, while also providing better stability when walking on loose terrain. The **carbon midsole** and seamless midsole-to-upper construction reduce stack height, stabilise the foot, and improve efficiency over long distances. Rounding out the package is a grippy **TPU outsole** that sheds mud, along with **drainage ports** for wet race conditions. Fit is handled by the low-profile **BOA Li2** dials and a wraparound upper, while the **anti-twist** heel cup locks the foot in place during sprints. ## Intended Use and Benefits The SH-RX910 is built for gravel racing, fast training rides, and long marathon days where efficient power transfer and reliable grip matter in equal measure. On Swiss gravel roads, Alpine passes with hike-a-bike sections, or in the Jura, the **Pontoon** interface delivers a smooth, controlled pedal stroke – even when cleats are deliberately set off-centre for comfort or performance. When dismounting, the tread pattern and **TPU** outsole provide confident grip, while the **drainage ports** and breathable construction help regulate the climate inside the shoe. Thanks to the **Wide** fit option and fine micro-adjustment via **BOA Li2**, riders with wider feet can also find a performance-oriented yet pressure-free fit for long days in the saddle. ## Compatibility and Installation Notes The pontoons are included with the SH-RX910, come pre-installed, and can be replaced when worn; the shoe is designed specifically for use with pontoons. The system has been developed exclusively for the **RX910** and is not compatible with other SPD shoes or 3-/5-bolt road cycling soles. Shimano recommends pairing with **XTR** PD-M9100/9200 or **DEORE XT** PD-M8100 for optimal performance; the support notes also list certain older SPD pedals as incompatible. The latest SPD cleat generation **CL-MT001** remains backwards compatible and works together with the Pontoon system; installation follows the same process as standard SPD cleats. Please check the service notes before first use and carefully adjust cleat position. ## Sizes, Weight and Fit The SH-RX910 is available in both standard and **Wide** lasts, covering full and half sizes, making it suitable for performance-focused, snug setups as well as more comfort-oriented configurations. As a reference, Shimano and media sources quote a weight of around 304 g per shoe in size 43 – impressively light for a gravel shoe with a proper tread pattern. With a stiffness rating of 12/12, the RX910 sits on par with the top S-PHYRE road models, without sacrificing the everyday practicality of **SPD** compatibility. Several colourways are available in Switzerland, giving your gravel bike setup a polished look from top to bottom. If you're between sizes, the fine micro-adjustment of the **BOA Li2** dials and the wraparound upper construction ensure a secure, pressure-free fit. ## Variants - variant-2757: in stock - variant-2756: in stock --- Source: https://kilometro.ch/en/products/shoes-25/mens-gravel-sh-rx9-s-phyre-shoe-spd-980