The VERTEX Piston Kit for KTM, HQV, and GASGAS Pro HC models is engineered to withstand elevated cylinder pressures in 4-stroke engines. Manufactured from high-quality aluminum alloy (2618) through an advanced forging process, these pistons are built to handle the internal pressures of the engine with superior durability. Each VERTEX piston is treated with a MOS2 coating on the piston skirt to minimize wear and extend the component's lifespan. VERTEX is a trusted OEM supplier for some of the world's leading motorcycle manufacturers and is relied upon by many factory teams in the MXGP circuit for its top-notch performance. The kit includes the piston, piston ring(s), piston pin, and circlip for secure installation. The 4-stroke piston design comes in two versions: Pro Replica, which is a forged piston matching the original form, and Pro HC, a specialized forged piston that offers higher compression and performance enhancement.