40T Steel Rear Sprocket #40/41/420, 6-Hole

Key features

• Designed as a direct replacement for popular mini bike models including CT100U, CC100X, RB100, B100, DB30, MMB80, MMB105, MBX10, 105cc models, and GMB100—works seamlessly with #40, #41, and 420 chains
• High-Strength Steel Construction: 420 sprocket made of durable, corrosion-resistant steel with plating for enhanced rust protection, engineered to withstand extreme loads and high RPMs without performance los
• Precision-Engineered for Smooth Power Transfer: This mini bike sprocket features laser-cut teeth to reduce chain wear and extend drivetrain life, with optimized gear design for stable acceleration and improved engine responsiveness
• Upgraded Performance for 212cc+ Engines: Supports high-power engines with no chain slippage, delivers enhanced low-end torque for better climbing and off-road capability, ideal for racing and high-speed use
• Improved Riding Experience: This 420 chain for mini bike provides faster acceleration with quick throttle response, reduces vibration for a smoother ride on any terrain, and offers long-lasting reliability for heavy-duty use

Free shipping included. 30-day hassle-free returns.