Mini bike transmission system

Mini bike transmission system – a reduction gear with a clutch. The photo has written on it: 6 teeth and 17 teeth.

• We measured where both arrows point: "17 teeth" points to the outer sprocket, and "6 teeth" to the splined shaft end at its centre. So 17 is the sprocket's teeth, and 6 is the shaft's splines. The photo has no second sprocket.
• Dimensions in the photo: 77,5 mm and 71 mm – parts of the body; 47 mm and 14 mm – distances near the small sprocket.
• The photo shows an aluminium body with three mounting lugs, a drum-type centrifugal clutch and an open sprocket.
• The centrifugal clutch engages by itself as engine revs rise: with the engine idling, the wheel does not turn.
• Time to replace it when the clutch drum is worn, the teeth have become pointed, or the reduction gear starts to howl.
• Supplier code MO 5906312721853 – state it again when ordering.

To be straight with you: the maker did not state the chain pitch or the shaft diameter. Which specific model and which years this part fits, the maker did not state, and we do not guess — but we can compare the dimensions for you: write us your model and year. Before ordering, measure your engine's shaft diameter and the chain pitch — or send us a photo: we will check it before you order.

24-month warranty · tel. +370 685 777 56