Vertex Top End Piston Kit - VTKTC23391B | Yamaha YZ250F 2008-2013

Features:

• All pistons are heat treated with a T-5 hardening and tempering cycle
• All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
• Top end piston kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing when applicable
• Replacement two-stroke piston rings sold individually; four-stroke piston rings sold as a set

Technical Specifications:

• Compression Ratio (x:y): 13.5:1
• Cylinder Diameter (mm): 77.00
• Displacement (cc): 250.00
• Piston Diameter (mm): 76.96
• Size Over Standard: STD

Two Stroke Piston Installation

Four Stroke Piston Installation