SKILLS December 28, 2020 Roto Grip Rubicon Bowling Ball Reaction Video Ball Review {vs} UFORoto Grip Rubicon {vs} UFO You deserve the very best on the lanes. The Rubicon from Roto Grip will deliver… Roto Grip recently re-formulated the eTrax cover to create the new eTrax-S20 solid reactive coverstock for this ball. Finished at…