Performance set designed for a piston replacement Includes every gasket, O-ring and seal required to rebuild a top end; valve seals, head, base, exhaust, tensioner, and other misc. gaskets and O-rings Made in the USA Does not include formed rubber valve cover gasket. - Honda CRF250RX (2024, 2023, 2022); Honda CRF250R (2023, 2024, 2022)