Racing Cylinder POLINI Racing 75 cc

for Vespa 50/
K50/
/
L/
L2
cast iron
6 ports

47,0mm
stroke 43mm
with cylinder head
M6 exhaust studs

TUNING ROAD – for everyday use

For race use only. Not admitted in the area of the German StVZO! Product description
The POLINI RACING is the secret king of the 75cc cast iron class and makes the front wheel rise! POLINI entices with attributes that are otherwise only to be found in the 125cc long-stroke segment. Highlights such as a generous exhaust with 2 auxiliary exhaust channels, a high quality ASSO piston and 6 transfer port channels are enough to make your mouth water. In addition, the POLINI 75cc RACING cylinder is painted black for protection against corrosion and for better heat dissipation.
Conclusion:
Only short-stroke cylinder with auxiliary exhaust porting, scores points with its extra performance, a higher compression of 11.9:1 and the 6 powerful transfer ports. Cast iron/ 47mm bore/ 6 transfer ports/ 74.60ccCast iron cylinder, stroke 43mm, 6 transfer ports, coated piston with 2 piston rings and cut-out, a main exhaust with 2 auxiliary exhausts, 6mm exhaust studs, original POLINI cylinder head is included in delivery, compression 11.9:1, incl. gasket set. Jets should be adjusted. Fits on all Vespa 50/PK/XL/XL2 models, except PK automatic. Transfer ports match the originals, casing must not be modified.