SSP-G 50mm QMB139 Performance Cylinder Kit

$119.99

67 in stock

We recommend that you use our QMB139 performance cylinder head (see Related Items) with this set as some stock cylinder heads will not fit.

  • Upgrades to 80cc
  • Cylinder Bore: 50mm
  • Cylinder Sleeve Outer Diameter: 54.9mm
  • Wrist Pin Diameter: 13mm
  • Total Piston Height: 34.8mm
  • Compression Height (from center of wrist pin hole to top edge of piston): 18.3mm
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SKU: 169-54 Category:

LogoHoca 50cc QMB139 4-stroke 50mm, Racing Big Bore Cylinder Set. Kit includes cylinder, piston, rings, piston pin, cir clips, head gasket, and base gasket.

Performance items are not returnable. Please see our Warranty & Returns Policy.

We recommend that you use our QMB139 performance cylinder head (see Related Items) with this set as some stock cylinder heads will not fit. Use with an un-modified stock head can cause serious engine damage.

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

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SSP-G 50mm QMB139 Performance Cylinder Kit