Lot of 8 20 x 12 carbon rolls compatible Aprilia, Benelli, Italjet, Kymco, Malaguti and Mbk /Yamaha.
These rollers are adaptable on the models indicated but can also correspond to other variators on scooters, quads or buggies, we advise to check that your rollers are identical before command ie to check the external diameter and the width (thickness of the roller). Regarding the weight, it's up to you, either by taking the same weight or by modifying it to influence the behavior of your engine. It is recommended to order several ranges of weight of pebbles to perfect your settings:
By climbing more pebbles slight you will have a better acceleration
By climbing more pebbles heavy you will have a better top speed
Compatibility models for guidance, it is advisable to disassemble the part to be replaced beforehand and check the correspondence with pictures and dimensions indicated on the site.