These axle sliders are specially made for the Yamaha FZ1 2006-2007. Designed to provide protection to your swingarm and brake components. Unlike others manufacturers that rely on standard internal diameters and an interference fit for many different bikes, MV Fork Sliders utilize a through the axle anodized aluminum rod that the slider pucks are secured to with stainless steel screws. The fit and finish is specific to the bike that they are made for.