Racing Cylinder POLINI 102 cc

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

55,0mm
stroke 43mm
with cylinder head
M6 exhaust studs

TUNING SPORT – high-performance

For race use only. Not admitted in the area of the German StVZO! Product description
POLINI offers you something in every class! The philosophy is to provide high-quality, high-performance cylinders, combined with brandname pistons at an attractive price. POLINI also provides torque from low down
making it an ideal partner for the city. Anyone who still wants more is advised to modify the exhaust port a bit, which is easy to do yourself thanks to Dremel and Co.! The compression is a powerful 11.2:1; it is recommended to use a high octane petrol. Here too, accurate tuning of the ignition and carburettor guarantee high-air-flow fun for short distances. The original transmission should be replaced by a longer primary drive. For better dissipation of heat we recommend painting the cooling fins black.
Conclusion:
Powerful cylinders for the city, strong torque for 2-person use. For long distances or longer stretches at full throttle it is better to use the PINASCO. Cast iron/ 55mm bore/ 6 transfer ports/ 102.16ccm Cast iron cylinder, stroke 43mm, 6 transfer ports, consisting of 2 side transfer ports and a big boost port divided into two, pistons with 2 piston rings, 6mm exhaust studs, original POLINI cylinder head is included in delivery, compression 11.2:1, incl. gasket set. Fits all Vespa 50/PK/XL/XL2 models, except PK automatic. The crankdases should be matched to the larger cylinder transfer ports.