Kymco ZX50 unrestricted drive boss.
The variators in the Kymco ZX50 have a drive boss with a shoulder that will limit the top speed of your bike.
Replacing the boss is an easy way to add some speed.
The variators in the Kymco ZX50 have a drive boss with a shoulder that will limit the top speed of your bike.
Replacing the boss is an easy way to add some speed.
