Bowling Ball Videos, Roto Grip Bowling Ball Videos
Roto Grip Sinister Video Bowling Ball Review
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Watch the Sinister in action here
Roto Grip uses the Cage core and the 76H hybrid reactive coverstock to create a ball that could only be called Sinister. This ball produces awesome midlane motion and down lane continuation. The hybrid coverstock allows the ball to ease through the fronts and continue through the breakpoint in heavy oil.