Malossi Variator Roller Kit 17 x 12.3 for TGB 50cc / Aprilia SR50 Ditech


The Malossi rollers are 17mm x 12.3mm. Different weight variations are available to select below.

These rollers are specifically designed to fit TGB 50cc scooters and the Aprilia SR50 Ditech.


Malossi Roller 17 x 12.3mm for TGB 50cc / Aprilia SR50 Ditech

TGB run a roller weight of 8.9 Gram in original variator.

Due to the rotation, the weight of the rollers becomes a centrifugal force; the higher the rollers weight, the lower the gear change time, and vice-versa.

Variator calibration
To optimize engine’s performance, select rollers that in operation, maintain the engine at the highest power regime. By diminishing the rollers weight the engine s RPM increases; on the contrary, by increasing the rollers weight the RPM decreases.

Fitting Instructions click.

With a variator your scooter has that extra sprint, a consistency in shifting, a greater mechanical ease at high speeds and a constancy in performance you’ve never experienced before with the original variator.
This is what the Malossi technicians wanted to obtain.

*Generic photo shown *Performance scooter parts do not come with a warranty

Additional information


4 Gram, 4.5 Gram, 5 Gram, 5.5 Gram, 6 Gram, 6.5 Gram, 7 Gram, 8 Gram