The VERTEX TopEnd Piston Kit for SUZUKI Pro Replica is crafted to withstand the higher cylinder pressure characteristic of 4-stroke engines. Each VERTEX piston is made from high-quality forged aluminum alloy (2618) to endure the internal pressure of the engine. Additionally, every VERTEX piston is coated with MOS2 on the piston skirt to minimize wear. VERTEX is a trusted original equipment manufacturer for some of the largest motorcycle brands. Many factory teams in MXGP also rely on VERTEX for their superior performance. The VERTEX Top-End Piston Kit is a convenient and cost-saving solution, as it includes everything necessary for a piston replacement. The kit comes with a cylinder gasket set and a timing chain. The Pro Replica model features a forged piston that matches the original form, while the Pro HC variant is a forged specialty piston that provides higher compression and enhanced performance.