With the Stage 6 70cc Streetrace grey cast iron cylinder series, Stage6 offer a bargain version of the popular SportPro Aluminium cylinder. The cylinder is stamped 49cc

The transfer port layout has been adopted from the high-performing 70cc Stage 6 SportPro and slightly modified in order to fulfil the thermal demands of the cast iron cylinder. Stage6 have gone for a piston manufactured by the renowned Italian company Vertex Pistons.

The performance characteristics mainly correspond to those of the SportPro; a bit more power when accelerating coupled with 0.5 hp less peak power. The ideal rpm range is around 10,000 rpm. It is recommendable to use a 70cc sport exhaust system. When it comes to looks, the cylinder is unobtrusive and similar to the stock part.

Fits Aerox/ Minarelli liquid cooled
* Use BR9ES long reach plug.Stage6 Part No. S6-7216651

• Yamaha Aerox 50
• Yamaha Jog (liquid cooled)
• Malaguti 50cc F12,F15
• MBK (liquid cooled)