The Champion Groove is our second Speed 13 Driver The Groove features an innovative groove on the underside of the rim. This channel allows this speed 13 driver to be molded in lighter weights than our other wide rim high speed drivers. The Groove offers super fast long and straight flights. It can be thrown low or high and sidearm or backhand. If the Boss proved to be too much disc for you, get into the Groove. Available in weights from 165 - 175 grams.