Description
Polini Piston Ring chrome Big Bore Piaggio / Peugeot / Minarelli (1x). Spare piston rings for when you want to replace only the ring(s), not the entire piston.
- 47x1.2mm
- Polini Alu / Corsa 70cc
- chrome-plated
- for Minarelli / Piaggio / Peugeot / Honda etc.
Polini Corsa
With the Corsa cylinder series from Polini, the name says it all, because Corsa means racing. The Corsa is a cast iron racing cylinder for 50cc scooters, known for its excellent ratio of reliability and performance. The Corsa has been around for a very long time and still has many friends and fans.
Advantages of the Polini Corsa
- Cast iron cylinder - easy installation, no squish adjustment
- Durable 2-ring piston for everyday use
- High performance
- Carbon reed petals included
- HC cylinder head
To make full use of the Corsa's performance, it should be combined with a racing exhaust and a well-adjusted carburetor with a large diameter. Readjusting the CVT is also recommended.
piston ring
Piston rings are sealing elements. They are inserted into the grooves of the piston to ensure sealing between the piston and the cylinder wall. Piston rings vary in size and shape and can be chrome-plated or cast iron, depending on the type of cylinder.
2-stroke piston Ring
The upper ring (often chrome-plated) is fireproof and seals the combustion chamber. The lower ring provides lubrication to the cylinder liner. 1-ring pistons perform both functions, but this results in a shorter service life.
4-stroke piston Rings
The upper ring also has the function of sealing the combustion chamber, while the middle ring collects excess oil and contributes to engine compression. The lower ring, known as the oil scraper ring, prevents engine oil from entering the combustion chamber.
Piston rings play a crucial role in the proper functioning and service life of the cylinder, whether on a motorcycle, scooter or moped.