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Cylinder Kit - Hoca 50mm QMB139 Performance Cylinder Kit Upgrades to 83cc! for BINTELLI SPRINT 50 > Part #169GRS54

  • $ 11999


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

Fits most 4 stroke models for these Brands: Bintelli, Tao Tao, Peace Sports, Wolf, Schwinn, Puma, SYM, Alliance, Motorino, Kymco

 

Specifications:

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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