VERTEX offers you a Big Bore forged piston kit designed for 125cc 2-stroke engines requiring power, torque and endurance, with a high-strength forged aluminum alloy construction offering excellent mechanical and thermal resistance to the heavy demands of off-road and competition use. 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 enable smooth revving, better engine responsiveness and performance gains linked to increased displacement. Its optimized design helps stabilize compression, limit wear on internal components and guarantee enhanced 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.