The Cocoarm Rear Chain Sprocket is a high-quality product designed specifically for ATVs, Quad Bikes, Go-Karts, and Electric Tricycles. Made of high-grade stainless steel, it ensures durability, strength, and rust resistance. The 428 size offers top performance, while the 40T gear ratio provides the right balance between power and efficiency. Its 37mm inner hole allows for easy chain installation, and the 6-hole mounting design ensures a secure fit. Polished for a smooth look and easy maintenance, this sprocket is also resistant to corrosion, ensuring long-lasting performance in various conditions. With its compact size and excellent features, the Cocoarm Rear Chain Sprocket is an ideal choice for riders seeking reliable and efficient performance.