roto grip announces the new gem bowling ball
Storm Pro Shop Staffer Anthony Wiegand throws the GEM, the newest asymmetric solid bowling ball from ROTO GRIP bowling! Multiple angles, commentary, and more!
Roto Grip GEM Bowling Ball
Sometimes evolution can spark new life into technology from yesteryear. Such is the case with our latest introduction to the HP4 Line of balls. With recent more in-depth studies of flare migration and core tendencies we circled the wagons back to the Defiant Series of bowling balls which featured a core ahead of its time regarding flare migration in order to create a longer constant motion.
Coverstock Name: MicroTrax Solid Reactive
Coverstock Style: Solid
Coverstock Type: Reactive
Weight Block: Defiant LRG Core
Core Type: Asymmetrical
Finish 1500: 2000 Grit Abralon
Finish Method Can be Polished OR Can be Sanded More
Durometer 73-75 on D-Scale
Flare Potential High
Weights 12 – 16 lbs.