DIYMINIBIKES

This front sprocket is used on the Chinese 50cc – 125cc engines. This sprocket has 12 teeth and is compatible with #428 chain only.
Sprocket details:
#428 Chain Size
Usually used on ATV’s with a 7″ rear wheel or smaller
12 Tooth
Fits 17mm shaft
No Holes
Will NOT fit Kazuma ATV’s (ONLY Kazuma models 90cc & under use 428 chain)
Be sure to measure your chain or current sprocket before ordering. 428 chain has 1/2″ pitch and 0.335″ roller diameter. Most Chinese sprockets have the chain size and teeth count stamped into the metal.