01-13 YZ250F Top End Rebuild Kit 77mm Stock Bore Replacement Cylinder Piston Kit

FITS ALL '01-13 YAMAHA YZ250F AND WR250F MODELS

• Aftermarket stock bore cylinder
• Wiseco CP or JE forged piston**
• Nitrite coated piston rings
• Chrome wristpin
• Circlips
• Top end gasket kit
• MLS head gasket
• Timing chain
• Maxlock TITANIUM head stud kit - LIFETIME WARRANTY* (Read below)
• Piston uses pump or race gas
• No mods required
• 1 year warranty*
• We are an authorized distributor