Skip to content
50cc Bike
Article no.: M348512

Piston Malossi MHR 180cc d=65mm Gilera Runner 125cc

108,00 €

incl. tax, plus shipping

In stock

You did not select a vehicle.
You still want to buy this item?


Note: The product does not match the selected vehicle model. Continue anyway? 

You'll get 108 reward points
Share product


Piston Malossi, d=65mm, 16mm piston pin.

Malossi is one of the leading Italian manufacturers of tuning and racing parts for scooters, 50cc motorbikes and mopeds. With a lot of know-how and a never-ending will to innovate, the brand has become the epitome of scooter tuning worldwide.

If the cylinder no longer works properly, it is not necessary to replace the entire cylinder, in many cases it is enough to replace the piston including piston pin, piston rings and clips. For racing engines it is extremely important to keep the revision times, because the piston has very little piston clearance and is equipped with a very fine piston ring.

Technical details:

  • Tuning level: Racing
  • Material: Aluminum
  • Displacement: 180cc
  • Bore: 65 mm
  • Stroke: Original
  • Connecting rod: Original
  • Homologation: ECE Homologation
Questions about the product
Notes and Safety

When to replace the piston?

To find out when the piston on your motorcycle, scooter or moped needs to be replaced, it's best to check your bike's manual. You can also keep an eye out for certain symptoms such as loss of compression, loss of power or oil consumption (only for a four-stroke piston).

Extending Piston life

To extend the life of the piston and reduce cylinder wear, it is recommended that you replace the piston rings on an alternating basis. This method maximizes piston life and improves engine performance.

It is important that you replace cylinder gaskets and piston circlips each time you disassemble the cylinder and piston. Failure to do so can result in oil leaks and engine damage.

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.

Technical details
Piston Malossi MHR 180cc d=65mm Gilera Runner 125cc
Article no.M348512
Weight0,29 kg
Product typePiston
Tuning levelRacing
Cylinder materialAluminium
Bore65 mm
Conrod lengthStandard
Customer reviews
3 Ratings
Write a review
Shopping cart

JavaScript ist in Ihrem Browser deaktiviert.
Bitte aktivieren Sie JavaScript um unseren Webshop nutzen zu können und laden diese Seite erneut.

Back to top