Restore strong compression and reliable performance with the VERTEX Cast Replica Top End Piston Kit—an OEM-form cast piston designed for quick break-in and long service life. Heat-treated and moly-coated skirt helps reduce friction and wear.
Bring your 2-stroke top end back to life with the VERTEX Top End Piston Kit (Cast Replica). Built in the original OE form, this gravity-cast aluminum alloy piston is engineered to restore crisp throttle response and dependable compression—ideal when you’re refreshing a worn top end or doing preventative maintenance.
Every piston is heat-treated with a T-5 hardening and tempering cycle for durability, while the skirt features a high-tech Molybdenum Disulphide coating to reduce friction, speed up break-in time and help extend piston life. The included OEM-replacement rings (nitride-coated steel) help maintain sealing and performance across demanding riding conditions.
