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Polini Evolution crankshaft round cone flywheels [...]
Polini Evolution crankshaft round cone flywheels 20, stroke 54 for Vespa Primavera - ET3
| Price: |
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|---|---|
| Item code: | 93395 |
| cod. producer: | 210.0070 |
| Availability: | Available available in 2/5 working days |
| Quantity: |
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Description
The crankshaft Polini Evolution "Spalle Piene" must be used exclusively in combination with the brand new cylinder with reed valve inlet code 140.0227.The shape of the circular cleavers drastically reduces internal turbulence in the crankcase, increasing the compression of the gases transmitted to the head for the combustion phase.
The balance is obtained using tungsten inserts and aluminum caps to reduce volumes.
In order to use the new crankshaft it is mandatory to bore the crankcase.
The crankshaft Polini Evolution "Full Shoulders" increases the travel to 54mm. The connecting rod is machined from solid with a center distance of 105mm.
COMPONENTS INTENDED FOR COMPETITIVE-SPORTS USE.
