All riders can now care for their wheels just like the factory mechanics. Remove the guess work out of wheel building, truing and maintenance. Easily adjustable to exact setting specs. with torque setting view window. Range of adjustment 30-150 lb in.. Kit includes 5.1, 5.8, 6.0, 6.1, 6.3, 6.4, 6.5, 6.7, 6.8, 6.9, spline heads. A head for most all bikes. Storage box is included. Consult your service manual for exact settings. General recommendation for most motocross & off-road wheels is 45-50 lb in.