40T 420 Chain Sprocket 40mm Bore Replacement

Upgrade your mini bike or go-kart with this 40-tooth 420 chain sprocket from CILOYU, designed for superior performance and durability. Compatible with a wide range of engines, including Predator 196cc/212cc, Coleman, Baja, TrailMaster, and more, this sprocket ensures a perfect fit for popular models like the BT200X, CT200U-EX, MB200, and DB30. With six additional mounting holes, it accommodates larger engines and mini bikes, ensuring versatility and reliability.

Engineered with precision-cut teeth, this sprocket delivers smooth power transmission, reduced chain wear, and improved acceleration and climbing power across all terrains. The 40mm center bore and dual bolt patterns (1.93" and 3.15" bolt circle diameters) provide a secure fit for 420 chains, enhancing torque and extending drive system longevity. Ideal for off-road enthusiasts and performance-driven applications.