Product Overview Secure your drivetrain with the Heavy-Duty 20mm Sprocket Retainer Kit. This essential locking plate is designed to keep your front drive sprocket perfectly aligned and securely fastened to the countershaft. Engineered specifically for horizontal engines, this kit prevents the sprocket from loosening or slipping during high-speed operation. Precision-machined and heat-treated, it provides the structural integrity needed to handle the torque of off-road riding, ensuring a safe and stable power transfer for your pit bike or ATV. Product Compatibility Component Type Specification Engine Type Horizontal Only (e.g., Lifan, YX, Zongshen, Loncin) Engine Displacement 50cc, 70cc, 90cc, 110cc, 125cc, 140cc, 150cc Vehicle Types Dirt Pit Bikes, ATVs, Pocket Bikes, Quads, Mini Bikes Shaft Diameter 20mm (0.78") Exclusions NOT for GY6 engines, Vertical engines, or 91 KX 125 Specifications Feature Details Inside Diameter 20mm (0.8") Material Heat-Treated High-Strength Alloy Steel Finish Corrosion-Resistant Coating Package Includes 1 x Retainer Clip (Locking Plate), 2 x Mounting Bolts Processing Precision CNC Machined Key Features Critical Safety Locking: Effectively fixes the front sprocket to the engine shaft, preventing the gear from migrating or falling off, which is vital for rider safety during high-RPM operation. Heat-Treated Durability: Constructed from high-strength materials that have undergone thermal hardening, providing exceptional resistance to impact and mechanical wear under "extreme pressure" conditions. Exact OEM Fitment: Designed in strict accordance with original factory specifications for horizontal engines, ensuring a perfect fit without the need for custom modifications or spacers. Complete Hardware Bundle: Includes the 20mm locking plate and the two necessary mounting bolts, offering a convenient, all-in-one solution for your drivetrain maintenance. Vibration Resistance: The precision processing ensures the plate sits flush against the sprocket, minimizing play and reducing the chance of bolt back-out caused by engine vibration.
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