Blackmax R adjustable clutch weights Magnets for the clutch weights to adjust mass Primary clutch spring secondary spring Upgrade Helix This clutch kit is the ultimate kit for the PRO R 4 CYLINDER models. It offers awesome belt grip, hard pulling acceleration, lighting fast backshifting, totally eliminates belt slap, much cooler belt temps, and adjustability.
Many hours of dyno and field testing and evolution has brought us to this setup. The clutch weights will come pre set for your machine based on the information you provide on the order. Full install instructions are included. Fits: 2022+ PRO R 4 CYLINDER MODELS
