Cylinder Kit Polini Sport 70cc cast iron Honda SFX / Bali

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.

Cast iron cylinders

Cast iron cylinders are more robust and reliable than aluminium cylinders and require less maintenance. Cast iron kits, however, yield less power. To improve output, you can add performance enhancing components such as a reinforced crankshaft, a larger carburetor or even a tuning exhaust.

How to run in a cast iron cylinder?

Cast iron cylinders should be run in between 300 and 500 kilometers, you should use high quality semi-synthetic engine oil.