PISTON KIT+TOP END GASKETS YZ2 PISTON KIT PRO HC TOP END Ø 66.40 B — voor o.a. YAMAHA YZ 250 (1999–2022)

Top End Piston Kit Cast Replica for 2-StrokeThe piston is heat treated with a T-5 hardening and tempering cycleThe piston skirt is coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston lifeGravity-cast aluminum alloy (not forged) with 18% silicone contentCast OE replacement pistonTop end kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearingKit Includes: • Piston Kit • Top End Gaskets • Wrist Pin BearingSpecificaties Units Kit Piston Material Aluminum Alloy| Cast Compression Ratio Standard Product Name Top End Piston Kit Style Cast Replica Research Value Finalized Cylinder Diameter 66,40 mm Compression Ratio Imperial Standard Piston Diameter Metric 66.35 mm Engine Type 2-Stroke Cylinder Diameter Metric 66.40 mm Piston Diameter 66,35 mm Displacement 250 cc Skirt Coating Molybdenum Disulphite Riding Style Off-Road