VERTEX offers you a piston kit designed for 250cc 4-stroke engines requiring power, responsiveness and endurance, with high-quality aluminum alloy construction offering excellent mechanical and thermal resistance to the heavy demands of motocross and competition. Thanks to its precision machining and anti-friction coating on the piston skirt, this kit reduces internal friction, improves lubrication and promotes more efficient combustion to ensure smooth revving, better engine response and consistent performance. Its optimized design maintains stable compression, reduces wear on internal components and ensures excellent durability even under extreme operating conditions. The complete ready-to-fit kit typically includes piston, rings, pin and circlips to ensure a reliable, long-lasting top end rebuild.