Malossi MHR Replica Big Bore 80cc Cylinder Derbi euro 3 / 4

The line of thermal groups was created specifically for the competition of the National Scooter Trophy 70cc automatic class. These thermal groups have been designed to guarantee maximum competitiveness and resistance at the highest level in this category.
The MHR Replica from Malossi is a powerful aluminum cylinder. Thanks to the Nicasil/Chrome coating, it is very reliable and thus suitable for daily use. The good thing is that the aluminum material ensures excellent cooling.
With this cylinder, you get about 12-15HP from the engine. To take full advantage of the performance, we recommend a larger carburetor (at least 19mm).
The kit comes with a cylinder head, 2-segment piston, gaskets, and parts for assembly—everything you can see in the photo.

The entire MHR line is the result of many years of experience accumulated in European and national competitions.

It is recommended to install an Iridium Racing spark plug