Malossi Gearbox Secondary Zip / LX / ET4 – 10″ Crankcase – 6712144

With this transmission kit secondary or also called transmission secondary, you change the standard gear ratio of the scooter resulting in (even) more speed. This really only works well if you have also taken other measures to increase the horsepower of the engine.

Otherwise, the acceleration will no longer go well. But combined with a different cylinder, variator and ECU, it runs like crazy. You will be amazed what your scooter is capable of.

NOTE: THIS SET ONLY FITS SCOOTERS WITH 10 INCH CRANKCASES