China Professional 420 Chain Sprocket with Free Design Custom

This rear sprocket is used on the Chinese 50cc-125cc engines.  This sprocket has 37T and is compatible with the 420 chain only.

Sprocket Details:

• 37 Tooth
• Chain Size: #420
• Center hole: 76mm (2.99″)
• Mounting holes: 66mm (2.60″) center to center (side by side)
• Mounting holes distance: 92mm (3.62″) straight across
• Overall diameter: 153mm (6.02″)
• Used on Taotao DB14 Dirt Bike

Be sure to measure your chain or current sprocket before ordering.  420 chain has 1/2″ pitch and 5/16″ roller diameter.