The Traxxion Dynamics extended fork caps for Big Piston Forks (BPF) are designed to use the OEM internals and allow the user to lower the forks in the triple clamps for geometry changes. By having the fork cap extended you can lower the fork in the triple clamp and not loose clamping surface. Caps are extended 15mm (0.59″) over stock. Caps are sold in pairs. This kit is for the 11-18 GSXR600/750.