The POLINI 70cc CORSA is the factory tuned version of the 70cc SPORT.
Despite all the features of the SPORT series, he is one of the headliners of the Midrace group.
Compared to the SPORT the port timings have been raised, as was the compression ratio. The exhaust port was polished, which gives a very nice finish. So you gain a further power increase with the CORSA of up to 3 hp. Fitted with the right components the rear wheel power is around 11 hp.
Advisable is beside the racing crankshaft, a carb with 19 mm bore and a well suited racing pipe.
Because of the higher power output there is slightly more tuning work to do, but it will be worth the efforts.
The delivery contains a complete cylinder kit including gaskets and all the small parts.
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