The vertical stand is designed for the new full width rear bumper that will be (if not already) manditory at all race tracks.
Standard Bumper - DOES NOT work with any extended bumper, unless it's removed. Works great if the Righetti Quick Release bumper mount is used.
Extended Bumper: Used with tubular or CIK plastic rear bumperes. NOTE: will stand the kart about 4" higher than the standard model. If this is being used in a lower trailer, it's best to go with the standard bumper setup and remove the rear bumper.
