As a proud parent of a young automotive enthusiast, we were thrilled to discover this piston cylinder for our child's motorcycle. Based on our own experience, this piston has significantly improved the bike's performance, providing a smoother ride and boosted acceleration .It has also held up well in rugged off-road terrains. The only downside is the slightly higher price point, but it's worth the investment for the improved performance. Overall we highly recommend this product for young riders See full review