Universal Parts GY6 61mm Big Bore Cylinder Kit


LogoUniversal Parts 61mm Big Bore Cylinder Kit for 150cc GY6 4-stroke engines. Upgrades to 169cc based on a stock stroke of 57.8mm! Includes cylinder, piston, pin, circlips, rings, head gasket, base gasket and chain tensioner gasket.

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

Out of stock

SKU: 164-309 Category:


  • Upgrades to 168.9cc!
  • Bore: 61mm
  • Overall Height: 90mm
  • Cylinder Sleeve Outer Diameter: 63.7mm

Additional information

Weight 2.5 lbs