CGN variator plastic cage (guide) with 3 balls for MBK 51 / AV10 / AV7 motobecane

Ideal for modifying and lightening your small original variator on MBK 51 AV10, AV7, ... Here is the plastic ramp, cage (guide) to modify your original ball variator with 3 balls (supplied)! An excellent way to modify your performance and tune your variation with a prepared engine configuration or not.