on the front variomatic unit
A very good fit with the special polymer nylon material, similar to the Dr. Pulley Vario rollers - prevents high wearing and achieves optimum sliding properties on the mounting plate. No need of additional greases because self-lubricating. They should be exchanged always at the same time with the Vario rollers to achieve a steady wear of the rollers and the slider. Usable for original Dr. Pulley and other variators

set, for front sport variomatic

plastic, on front variomatic unit

for variomatic, 5 different rings, width: 3/4/5/6/7mm
With the rings you can individually to increase the speed of the scooter or throttle. Small ring increases speed, large decreases.
Not allowed for RTLR (StVZO)!

Plastic, front on variator mounting plate