Kuryakyn 8818 Splined Adapter Mount Splined Adapters required to mount Kuryakyn Footpegs sold without adapters. Provide slip-free mounting of ISO-Boards and other Kuryakyn footpeg and foot control accessories that require splined peg mounts. Sold as a pair. Note: It is the installer's responsibility to ensure that all of the fasteners (including pre-assembled) are tightened before operation of the motorcycle. Kuryakyn will not warranty components lost due to improper installation.