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Motorcycle - Piston and Shim Kits

The 20mm piston and shim kits offer more adjustability and tuning ability through shims and our specially designed piston. Velocity Dependent Piston technology separates the high and low speed shim stacks for virtually unlimited valving combinations; from Velocity Square damping to Linear to Digressive all with one piston. A rebound piston featuring controlled flow design and a low friction Teflon® piston band are added to complete the kit. All pistons are anodized for long service life and reduced oil contamination.