Variator control shim kit Honda Dio, Ruckus, GY6, Kymco 50
These tiny washers can have a dramatic effect on how your scooter performs.
In general, lengthening of the boss will give you better acceleration because the belt will sit lower in the front pulley.
A shorter boss will allow your variator to close more for more top end speed.
Contains 10 shims of each size .1mm, .2mm, and .5mm.
Compatible with any scooter that has a variator boss with a OD of 20mm.