YZ450F / WR450F Top End Rebuild Kit

Includes:

95mm Stock Bore Nikasil Cylinder (1 year warranty*)

95mm Wossner forged piston kit (includes piston rings, wrist pin, and circlips)

12.5:1 Compression perfect for pump or race gas

Top end gasket kit with MLS head gasket

Perfect for pump gas or race gas

Fits all 2003-2005 YZ450F models

1 year warranty on complete kit for your piece of mind*

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