Rear Sprocket Chain size: #420 
Tooth count: 25 
Shaft ID: 21mm 
Bolt Holes: 9mm 
BCD: 37mm 
Thickest Part: 6.1mm 
Thinnest: 5.2mm 
Sprocket OD: 106.23 

This rear sprocket is used on Chinese 50cc-125cc engines. This sprocket has 25 teeth, is compatible with 420 chain only, and is commonly found on the Coleman KT196 and the HiSun HS200GK go-karts.


In an effort to provide our customers the quickest shipping we possibly can, we are unable to cancel orders after they have been placed. We do offer returns on some items. Returns must be in the original packaging, and in new and sellable condition. There will be a 10% restock fee to cover the costs associated with returns. We are unable to offer returns on electrical items. Please make sure the item you order is what you need or contact us with any questions prior to ordering. 

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