PISTON KIT VERTEX 91.00MM OVERSIZE HONDA CR500R 85-04 CRE500 85-01them to build on their outstanding dedication to quality while continuing to bring their products to market at an affordable price. Vertex piston kits include the piston, rings, wrist pin and circlips. The pistons are heat treated with a T 6 hardening and tempering cycle. Also, a molybdenum disulphide skirt coating is used for reducing wear and improving the break in phase of each piston. Forged Pistons for 4 Stroke Four stroke engines have much