Maybe you have a favorite pair of road cycling shoes that you want to use for an indoor cycling class or prefer the fit and feel of 3-hole cleat compatible shoes but want the functionality of 2-hole SPD cleats. Maybe you simply want one pair of shoes that will work with both 2 and 3-bolt cleat types. Whatever the case, Shimano SM-SH41 SPD Cleat Adapters allow you to make the conversion quickly and easily from 3-hole to 2-hole cleats so you can do it all.