420 Chain and Sprocket Set, Rear 37 Tooth 76mm Front 17 Tooth 17mm 96L Chain for Chinese Motorcycle 50 70 90 110 125 ATV Mini Bike Go Kart SSR Taotao Coolster Pit Bike Parts

Fitment: Replacement for 50cc 70cc 90cc 110cc 125cc Mini Bike ATV Go Kart (Please ensure that you check compatibility) Specification: Material: High strength alloy steel Chain Type: 420 chain Product Type: 420 Chain Sprocket Kit Rear Drive Sprocket: 37 teeth Front Drive Sprocket: 17 teeth Front Sprocket Diameter: 17mm Package Includes: 1 x Front Drive Sprocket 1 x Rear Drive Sprocket 1 x Chain 1 x Fixing plate 1 x Screw kit

• Universal Compatibility: Engineered for 50cc 70cc 90cc 110cc 125cc engines, this 420 chain and sprocket set ensures seamless fitment across motorcycles, ATVs, go-karts, and mini bikes, delivering consistent capability for varied off-road motorcycles.
• Heat-Treated Durability: Precision-crafted from high-grade alloy steel and heat-treated for toughness, the components resist wear, deformation, and harsh conditions, guaranteeing long-term reliability under demanding use.
• Optimized Gear Ratio: The 17T front and 37T rear sprocket pairing balances torque and speed, enhancing acceleration efficiency while reducing strain on the drivetrain for smoother driving.
• Friction-Reducing Design: Precision-machined teeth minimize chain friction, extending the lifespan of both the chain and sprockets to lower maintenance costs and downtime.
• Complete Installation Kit: Includes a 96-link 420 chain, front/rear sprockets, mounting hardware, and chain remover—everything required for quick, tool-free setup to get your vehicle running swiftly.