The MPS Air – Hydraulic Clutch allows the use of a delay box with your hydraulic clutch equipped sport bike. Some modifications may be necessary for clearance (fairing, triple clamp and switch pod). They feature a quick exhaust valve and an adjustable lever stop for better reaction times on a pro tree. The MPS Air – Hydraulic Clutch comes with everything needed for installation including: The master cylinder assembly itself, electric air valve, MPS Pro Pushbutton, clutch switch, air line tee, air line, and complete installation instructions.