How fast (top speed) will my Zuma go after I install the Variator or Pipe kit?
A. Your Zuma will not go any faster (top speed) by just installing a pipe or big bore kit. Your Zuma will make more power not more RPM, therefore it will be able to accelerate to the same top speed quicker. In order to go faster (top speed), you will need to change the gear ratios in the Primary drive (see the primary gear set kit) so that when the engine reaches it’s maximum RPM the rear wheel will be turning faster than it is now.