VERTEX Cast Race top-end piston kit for 85cc 2-stroke engines, built with race-profile geometry and Vertex technology. The gravity-cast aluminum alloy piston is T-5 heat treated and features a moly-coated skirt for faster break-in and longer service life.
Rebuild your top end with a race-focused piston kit designed for reliability and fast break-in. The VERTEX Cast Race Top End Piston Kit uses a race shape/profile developed with Vertex technology to help deliver consistent performance in demanding riding. Thanks to T-5 heat treatment and a high-tech moly skirt coating, it’s built to reduce wear, shorten break-in time, and extend piston life—ideal when you want dependable power without unnecessary downtime.
This kit simplifies a top-end service by combining the key wear items in one package, so you can refresh compression and restore crisp throttle response with confidence.
