variator limiter ring / restrictor ring 5mm for China 2-stroke, CPI, Keeway

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. Fits all scooters with 50cc Minarelli clone 1E40QMB engine. The limiter ring is available in different thicknesses. Dimensions (inner diameter x outer diameter): 21x25mm Thickness 5mm