This front sprocket is used on the Chinese 200cc engines, specifically the Coleman KT196 and the Hisun HS200GK go-karts. May be used on other applications as well. This sprocket has 10T and is compatible with 420 chain ONLY.
Sprocket details:
Small chain sprocket on the KT196
Works with #41 and #420 chain
10T
ID 16mm [.625″]
OD 46mm [1.81″]
Width: 20mm [.79″]
Uses 5×17 key – Not included
Be sure to measure your chain or current sprocket before ordering. 420 chain has 1/2″ pitch and 5/16″ roller diameter. Most Chinese sprockets have the chain size and teeth count stamped into the metal.