RotoGrip RST X-4 (overseas)

For high-performance bowling balls, Roto Grip’s RST Core technology has been a game-changer since the 1950s. This innovative technology provides consistent torque and energy transfer, while adapting to professionals’ exceptional rev rates on the lanes.
The X-4, with its larger core mass at the base, represents the next level of excellence. It sets a new Tour-Level standard for high-performance bowling balls. Featuring advanced dynamics after drilling, the RST Core technology preserves core torque along the entire length of the lane.
So, whether you’re a professional bowler or an enthusiast, the RST Core technology will elevate your game to new heights. Feel the power and the precision of the Roto Grip X-4 and enjoy an exceptional bowling experience!
Overseas bowling balls are approved for all sanctioned USBC league and tournament play, but may not approved for PBA competition. Please check all rules and regulations before competition.