Küryakyn footpegs are a 2-part system for convenience and easy installation. Simply select the footpegs you desire & the appropriate motorcycle specific adapter for your bike. The new serrated adapters bite right into your footpegs for a secure attachment, so make sure they are at the desired angle before you tighten them down. This convenient 2-part system also allows you to change your pegs without purchasing new adapters. Have a new bike? Simply switch your pegs by purchasing new adapters.