Best 03 04 05 YZ450F Top End Rebuild Kit Stock Standard Bore Cylinder Piston Kit
YZ450F / WR450F Top End Rebuild Kit
Includes:
BPRATV 95mm Stock Bore Nikasil Cylinder (1 year warranty*)
95mm Wiseco or Wossner forged piston kit (includes piston rings, wrist pin, and circlips)
Top end gasket kit with MLS head gasket
Perfect for pump gas or race gas
Works on all '03-05 YZ450F and '03-06 WR450F models
1 year warranty on complete kit for your piece of mind*