Malossi cylinder 317083 70cc 47mm pin 10mm. Have fun without complications. (6 ports - 2-segment piston).
Malossi cast iron thermal units, the first and simplest step to modify the engine of your moped, are the best choice to continue using a standard or approved exhaust system.
In these thermal groups the characteristic of high durability of the cast iron is combined with the almost maniacal quality standards of Malossi, one of the very few companies to demand the maximum even from this class of thermal groups. With this in mind, the very strict selections for the coupling between cylinder and piston are strictly maintained within the range of maximum 20 microns of tolerance.