With the 70cc streetrace cast iron cylinder range, Stage6 now offers a cheaper version of the popular SportPro aluminium cylinder. The overflow layout has been adopted by the powerful 70cc SportPro and minimally modified to meet the thermal requirements of the cast cylinder. When choosing the piston, Stage6 relies on the renowned Italian manufacturer Vertex Pistons. The performance characteristics largely correspond to the SportPro: slightly more power in the suit, 0.5 HP less peak power. Power speed is approx. 10,000 RPM The use of a 70cc sports exhaust system is recommended. Optically, the cylinder was inconspicuous and close to the series. Stage6 deliberately dispenses the pouring of the brand name and shows the inscription '49cc'. ... Longer description and suitable vehicles at http://www..heavytuned.de/data135114.pdf
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