Modular GARMIN Rally Pedal Body: Swapable for varied use Cleat Compatibility: GARMIN RS & SHIMANO SPD-SL (3-hole cycling shoes needed) Use Existing Spindles: Mount on current Rally spindles (included in starter sets) Series Suitability: Rally 110/210 (single/dual-sensing power measurement) Shoe Release Tension: Adjustable for user preference Durable Pedal Areas: Stainless steel for optimal power transfer Broadening your cycling horizons is easy with the interchangeable pedal bodies for the GARMIN Rally wattmeter pedal system. If you already own Rally pedals and want to use them with another platform, the GARMIN Rally RS pedal body replacement kit enables a seamless switch to the SHIMANO SPD-SL system in just a few steps. The modular Rally system measures wattage via sensors on the pedal spindle, allowing you to use a single spindle pair and various pedal replacement kits with up to three different click systems. This way, you can enjoy the benefits of power and cadence measurement on all your bikes, from road bikes to MTBs, and save money compared to purchasing multiple pedal sets.