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Stage6 Streetrace 70cc Cylinder Kit - Yamaha Zuma 50 Horizontal AC (10mm)

Availability: Out of stock


The Streetrace cylinder fits Yamaha Zuma 50 Minarelli horizontal AC engines.



Stage6 now offers a bargain version of the popular Stage6 Sport Pro aluminum cylinder with the introduction of the Stage6 70cc Streetrace, grey cast iron cylinder series. The transfer port layout has been adopted from the high-performing Stage6 70cc Sport Pro cylinder but has been slightly modified in order to meet the thermal demands of a cast iron cylinder. Stage6 has also chosen a companion piston that is manufactured by the renowned Italian company, Vertex Pistons. The performance characteristics are very similar to those of the Stage6 Sport Pro cylinder offering a bit more power when accelerating but with 0.5 hp less peak power. The ideal RPM range is around 10,000 RPMs. It is recommendable to use a 70cc sport exhaust system. When it comes to looks, the cylinder is unobtrusive and looks similar to the original cylinder. Stage6 has deliberately decided not to display the Stage6 logo on the cylinder and has even stamped the Streetrace cylinder with 49ccm.

Additional Info

Additional Info



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


  • Grey Cast Iron Cylinder
  • Bore 47mm
  • 10mm Wrist Pin
Brand Stage6


Best bang for the $$$Review by Mole
quite simply the best bang for your buck. wide power band great toque and keeps making power till 11K rpms. great for those mid build 2stroke tuners. (Posted on 11/14/13)

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