The Shimano SPD A-530 pedals feature a large platform on one side and a SPD on the other side. They are great for commuting or any time some riding with non-biking specific shoe is expected. Some riders find the A530 are terrific pedals for folks getting use to a SPD system. The M-424 SPD pedals have the other features expected of SPD pedals such as a super simple click-in and exit action. The SPD cleats are also included with the pedals and easy to install.