Parts & Accessories › SHIFT ASSIST BEARING Image 1 of 1 SHIFT ASSIST BEARING $22.95 Sold Out For ACT or Diamond Drive Driven clutchGives smoother upshift and backshiftHelps eliminate spring bind and allows the moveable sheave to rotate freely Sold Out Added! For ACT or Diamond Drive Driven clutchGives smoother upshift and backshiftHelps eliminate spring bind and allows the moveable sheave to rotate freely