Based on the optimum SPD pedal PD - R 540 for introductory use, the spring action of the binding was set for beginners more and it is light action that made it possible to detach it safely and easily. The feeling of detachability with a moderate clicking "clicking" is light, and it is also optimal for learning the binding for the first time. ※ Left / right set ※ Specifications and appearance may be changed without notice for improvement.