VERTEX Cast Replica Piston Kit is an OE-form replacement piston for 85cc 2-stroke engines, built for reliable performance and long life. T-5 heat treatment and a moly-coated skirt help reduce friction and speed up break-in.
The VERTEX Cast Replica Piston Kit is designed as a direct, OE-form replacement for 85cc 2-stroke engines—ideal when you want dependable rebuild quality without changing compression or engine character. Its gravity-cast aluminum alloy construction with high silicone content keeps the piston lightweight yet strong, while the T-5 heat-treating process improves durability under heat and load.
A high-tech molybdenum disulphide skirt coating reduces friction, helping the piston bed in faster and extending service life—especially useful in demanding motocross and off-road conditions where engines see high RPM and frequent heat cycles.
