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

This product includes an aftermarket cylinder, piston, piston rings, wristpin, circlips, gasket kits, timing chain, and head stud kit for YZ250F and WR250F models. It comes with a 1-year warranty on the cylinder and head stud kit, and a lifetime warranty on the head studs.

• The description claims the product improves performance.
• The description claims the head stud kit has a lifetime warranty.