Description
Polini 50cc Cylinder Kit "Alu W", d=40mm, Peugeot 103 AC, with hard-chrome plated aluminium cylinder and a single-ring piston.
The kit has impressive power at high rpm range (appr. 6hp at 9300rpm, according to Polini) and very convincing torque for a 50cc cylinder. Its unique feature: the W-shaped exhaust port.
We recommend combining the Polini 50cc Cylinder Kit "Alu W", d=40mm, Peugeot 103 AC with a 15mm carburetor (at least) and a high-rpm sports exhaust. Although you can use your original cylinder head, we recommend replacing it with a high-compression cylinder head for even higher performance. The kit does not include a cylinder head.
Street-legal!
Note: If you want to mount this kit on a Peugeot Fox, you'll have to use a sports exhaust! In case you want to use the original exhaust, the exhaust flange has to be modified.
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: Racing
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.
Racing products are designed for a more extreme uses and are developed primarily for racing. Whether you stay at 50cc or increase the displacement, the corresponding Racing parts produce much higher performance than the original parts in order to achieve maximum power.
Aluminium cylinders
Aluminium cylinders are more powerful than cast iron cylinders, but require more regular maintenance and must be combined with different components such as a reinforced crankshaft and a larger carburetor.
How to run in an aluminium cylinder?
Aluminium cylinders should be run in for about 200 kilometers , and you should use a fully synthetic engine oil.
Note: To ensure optimum performance and reliability, it is advisable to measure the squish clearance. Just have a look at our tutorial How to adjust squish clearance.
