VERTEX Top End Piston Kit (Cast Replica) is an OEM-style replacement kit for 85cc 2-stroke engines, designed to restore compression and reliability. The cast aluminum piston is heat-treated and features a moly-coated skirt for faster break-in and longer life.
VERTEX Top End Piston Kit (Cast Replica) is a complete top-end refresh solution made to match original OE form and fitment. It’s ideal when you need to bring back crisp throttle response, stable compression and dependable performance on an 85cc 2-stroke—without guessing which small parts you might be missing.
The gravity-cast aluminum alloy piston is extremely light yet strong thanks to its high (18%) silicon content. Every piston is heat-treated using a T-5 hardening and tempering cycle, while the skirt is finished with a high-tech molybdenum disulphide coating to shorten break-in time and help extend piston service life.
⭐ OEM-style replica design from a trusted performance engine brand (VERTEX)⭐ Wear-focused upgrades like T-5 heat treatment and moly skirt coating for durability⭐ Complete kit contents help ensure a smoother, more straightforward top-end rebuild