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Stage6 70cc Racing Cylinder Kit - Yamaha Zuma Horizontal AC (10mm)

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Stage6 Racing 70cc cylinder kit for Yamaha Zumai horizontal AC. 



The racing version of the Stage6 cylinder line. This is a high quality aluminum cylinder kit holds power among the best in the mid-race range. A very durable nikasil-coated liner with the fast heat-dissipation nature of aluminum ensures excellent reliability. The main differences to the Sport Pro are longer port durations, a bridged exhaust port which makes for huge port time area and a higher compression ratio. This cylinder needs either a 17.5mm or even 19mm carb. Together with the proper exhaust system (i.e. Stage6 Pro), this kit will yield excellent performance. Delivered with a specially coated Asso piston, a set of carbon reeds and a variety of base gaskets to adjust squish clearance.

Additional Info

Additional Info



  • Yamaha Zuma 50 Horizontal AC
  • Yamaha Jog AC
  • Minarelli Honizontal AC
  • Stock 10mm Crank 


  • Aluminum Cylinder
  • Bore 47mm
  • 10mm Wrist Pin
  • Includes 5 base gaskets - 0.10 0.20 0.30 0.40 0.50.
Brand Stage6


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