variator limiter ring / restrictor ring set for Piaggio, Vespa, 139QMB, Kymco, SYM 50cc IP33973 fitting for Gilera Runner 50 C46100 2005, 4,5 PS, 3,3 kw

Do you need to restrict/reduce the speed of your scooter for legal or insurance reasons then this simple method using a limiter ring is a great option. These rings fit all scooter variator axis with an external diameter of 20mm including 50cc Piaggio scooters, 4 stroke Chinese scooters with engines 139QMA/B or Kymco and SYM 50cc scooters.

Set of 4 rings supplied:
- 2mm
- 3mm
- 4mm
- 5mm