Description
Polini is one of the big names in 50cc scooter tuning, and is also one of the leading manufacturers of tuning parts for Vespa, modern and vintage. Cylinders, intake manifolds, exhausts, air filters, carburetors, crankshafts and more - everything you need to boost the performance of your Classic Vespa.
Polini Cylinder Kit 50cc (d=38,4mm) Vespa 50 PK - XL, cast iron sports cylinder with 38.4mm bore by Polini.
This 38.4mm cylinder is the perfect entry level tuning cylinder. Displacement will stay the same, and the original crankshaft can be retained. Acceleration and torque are improved, and top speed is raised.
The cylinder has 5 transfer ports and a 2-ring piston with low-friction coating. Cooling properties are excellent, so this cylinder allows for intense use. Optimum RPM range is approximately 7,800rpm.
And, made by Polini, everything is manufactured according to very high quality standards.
- cylinder, cylinder head, piston, gaskets
- cast iron cylinder + high-compression aluminium head
- 50cc displacement
- long thread spark plug
How to Install a cylinder on a scooter, motorcycle or moped
The cylinder or cylinder kit is the heart of the engine on scooters, motorcycles and mopeds. It consists of a cylinder, a piston with piston ring(s), a cylinder head and gaskets needed for installation.
The service life of a cylinder depends on whether it has been fitted correctly.
Tuning Level: Sport
We categorize our products into different performance levels Original, Sport, Racing and High End , so that our customers can choose the right parts for their setup. It is really important to combine parts that belong to the same tuning level, this is especially true for cylinders, crankshafts and exhausts.
The products listed under Sport yield better performance than Original parts. They may have technical differences, such as the use of higher quality materials, a larger displacement or a performance-enhancing design. They are suitable for everyday use and have a long service life.
Spare Parts
- Polini
Piston Polini D.55mm 102cc Vespa 50 Special / PK 50 / S / Ape62,50 €Currently not in stock - Polini
Piston Ring 55x1,5mm Polini aluminium 152cc Vespa Primavera 125cc ET38,10 €Currently not in stock - Polini
Cylinder Gasket Set Polini Vespa 50 APE FL / FL2 / FL3 / RS / Primavera 125cc ET33,90 €Ready for dispatch shortly
