Hoca GY6 61mm Big Bore Cylinder Kit

Hoca 61mm Big Bore Cylinder Kit for 150cc and 125cc GY6 4-stroke engines and engine based vehicles. This is a replacement cylinder kit for part #169-162. Upgrades to 169cc based on a stock stroke of 57.8mm.

*You may need to modify your engine case to accommodate the larger cylinder.

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