VERTEX offers replica 4-stroke forged piston kits designed as high-performance OEM replacements for demanding off-road engines. Each kit typically includes a high-strength 2618 aluminum forged piston, rings, pin and circlips to ensure a complete and reliable top-end rebuild. Pistons feature T-5 heat treatment and molybdenum disulfide skirt coating to reduce friction, improve running-in and extend engine life. Their "Forged Replica" design retains the original characteristics and compression ratio, while offering greater resistance to high temperatures and high mechanical stress. Developed for enduro, cross-country or intensive competition use, these pistons guarantee excellent stability at high revs, optimized combustion and consistent performance in extreme conditions.