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Taida GY6 63mm Big Bore Cylinder Kit with Forged Piston

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Availability: In stock


Cylinder Big Bore for both the 54mm and 57mm head stud GY6 Engines

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So, the 125cc is too slow or that 150cc just doesn't have enough torque? Sounds like you need a big bore! Now you can get the Taida GY6 63mm Big Bore Kit for your GY6 in both the 54mm and 57mm head stud cylinder versions. This big bore cylinder, when combined with the stock stroke will get you 180cc of torquey GY6 power.

Additional Info

Additional Info



  • GY6 125cc and 150cc
Head Stud Spacing:  (please call for more info)
  • 54mm (A-Case) Found on most Stock GY6 150cc
  • 57mm (B-Case) Found on most aftermarket application.


  • Bore : 63mm
  • Piston: 63mm Forged
  • Head Stud Spacing: 54mm (A-Case) or 57mm (B-Case) 
  • Displacement: 180cc (stock crank)
  • 1 Thin Base Gasket (High Compression)
  • 1 Thick Base Gasket (Low Compression)
  • 1 Head Gasket
  • Piston Pin
  • 2 Piston Pin Clip
Brand Taida Parts


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