37T 428 Rear Sprocket Cog for Motorbike Thumpstar Atomic Dirt Bike 70/110/125cc

SKU:TF036#
  • $29.95
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Pit Bike Rear sprocket 37 teeth 428 pitch black


428 means your chain at its widest point is 16.7mm.

It will fit dirt bikes using 428 chain in 70cc 110cc 125cc 140cc such as Thumpastar Atomik Foxico . etc. 


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