420 12 TOOTH 20MM FRONT ENGINE SPROCKET ATV DIRT BIKE SDG SSR 110 125

420 12 TOOTH COUNTER 20mm SHAFT Front ENGINE SPROCKET

Fits all popular pit bikes and mini ATVs, Lifan, Loncin, Jialing, Zongshen engines. It won't fit to stock Honda engine.

CONDITION: Brand New

SIZE: This is for 420 chain. The shaft size is 20mm. See picture below for measurements.