Shimano SM-SH41 cleat adapters let SPD-SL road shoes work with SPD 2-bolt cleats and pedals. They are intended for riders who want to keep using 3-hole road shoes on gym, spin, MTB, or gravel-style SPD setups without changing shoes. Shimano’s installation guidance notes the adapters fit all SPD-SL / 3-hole clip-in cycling shoes and are the same for left and right shoes, with included hardware for mounting the adapter and SPD cleat.

This part is useful when you want the comfort and walking stability of an SPD recessed-cleat setup while keeping your road shoe fit. The adapter raises the cleat interface and adds a more walkable contact surface, which can help protect the cleat from ground contact. It is not a conversion for 2-hole shoes to 3-hole cleats, and it does not provide fore-aft cleat adjustment on its own, so it is best for riders who already know their cleat position or need a simple adapter solution.