This website uses cookies to give you the best experience. By using this website you consent to the use of the cookies.
Product category
- Clothing for Vespa & Helmets
- Classic Vespa
- processing
- Engine shafts
- Special shock absorbers
- Carburettor parts
- Manifold parts
- Ignitions - Control units and flywheels
- Thermal groups
- Brake parts
- Clutch Parts
- Transmission Transmission Parts
- Seals - Bearings - Oil seals
- Thicknesses - Shims
- Marmitte
- Frame parts - Wheels
- Carter
- 4 stroke
- SIP-PRO SERIES
- PLC-Racing
- Polini
- Malossi
- Pinasco
- Money
- PARMAKIT
- DR
- Crimaz
- DRT
- BGM
- CMV
- sip
- Polini
- Accessories
- Tools
- Spare parts
- Electric spare parts
- Engine spare parts for Vespa
- User manuals
- Oil, gloves & Chemical Products
- Tires
- Automatic Scooters
- Restoration kit for Vespa
- moped
- News
Polini Evolution crankshaft round cone flywheels 20, stroke 54 for Vespa Primavera - ET3
Price: |
|
---|---|
Item code: | 93395 |
cod. producer: | 210.0070 |
Availability: | Available available in 2/5 working days |
Quantity: |
User feedback
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.