Top Performances Piston Ring D.47,4mm for Due Plus Yamaha Aerox

Top Performances Due Plus

The famous Due Plus series from Top Performances needs no further introduction. The cylinder series is a classic in the 50cc tuning scene and has built up a very good reputation over the years.

Although it is a cast iron cylinder, the Due Plus can be categorized as a racing cylinder in terms of performance.

Advantages of Due Plus cylinders

• Simple installation without squish clearance adjustment
• High performance
• High reliability
• Suitable for daily use
• 1-ring piston
• Optionally with one-piece or modular cylinder head (better cooling)

ATTENTION: The cylinder is reliable and powerful, but must be combined with other racing parts to realize its full potential: reinforced racing crankshaft, racing exhaust, larger carburetor and intake...

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.