Kuryakyn footpegs are a two-part system for convenience and easy installation. Simply select the footpegs you desire and the appropriate motorcycle specific adapter for your bike. Serrated adapters bite right into your footpegs for a secure attachment, so make sure they are at the desired angle before tightening them down. Allows you to change your pegs without purchasing new adapters, or switch pegs to a new bike by only purchasing the adapters. adapter fittings are for stock OEM peg mounts.