Description
Founded in 1930, Malossi continues to be one of the leading manufacturers of tuning parts for scooters and mopeds. Top quality materials and excellent workmanship are typical of everything made by Malossi.
The Malossi MHR Cylinder Kit 136cc (d=57.5mm) aluminium Vespa Primavera ET3 125cc is a high-end tuning cylinder designed for the race track. Malossi MHR engineers are always trying to redesign and improve cylinder layout. High-quality aluminium (with very hard Nicasil-coating) now replaces the original cast iron, port timings were remapped for impeccable racing performance. The ports are large, the exhaust port is bridged. As you can never go wrong with more displacement, Malossi pushed it up to 136cc. The cylinder provides plenty of torque and unbeatable amounts of hp.
The piston is a high-end Asso piston, with 1 thin, light, wedge-shaped ring with anti-friction coating.
The cylinder head included in the kit is a high-compression cylinder head.
The cylinder was designed for crankshafts with 51mm stroke.
The cylinder is suitable for racing setups, with large carburetor and racing exhaust.
- 6 transfer ports
- including piston, cylinder head, gaskets
- 57.5mm bore
- high-end racing
- 25hp at 11,000rpm
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.
