These front sprockets are used on the Chinese 50cc – 125cc engines. These sprockets are compatible with #428 chain only.
Sprocket Details:
#428 Chain Size
Usually used on ATV’s with a 7″ rear wheel or smaller
Choice of 13, 14, 15, or 16 Tooth
Fits 17mm shaft
Uses retainer with bolts – not included (Part # ZN61241-SR387-02)
Will NOT fit Kazuma ATV’s (Only Kazuma models 90cc and 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.