VERTEX Cast Race piston kit engineered with Vertex race-profile technology for fast break-in and long service life on 85cc 2-stroke engines. Gravity-cast 18% silicon alloy with T-5 heat treatment and a moly-coated skirt helps reduce friction and wear.
The VERTEX Cast Race piston kit is built for riders who want reliable performance and a race-developed piston profile for their 85cc 2-stroke engine. Made using Vertex technology and a race shape profile, it delivers smooth operation while helping you get back on the track quickly with a complete, ready-to-install kit.
Thanks to a gravity-cast aluminum alloy with 18% silicon (cast, not forged), this piston is extremely light yet strong. A T-5 hardening and tempering cycle improves durability, while the molybdenum disulphite skirt coating reduces friction for a faster break-in and increased piston life—ideal for regular maintenance intervals or top-end refreshes.