Roto Grip RST X-4 X-COMP 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. 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. Please note, I have several of these available, but I couldn't find a good stock photo so the ball in the pictures may not be the exact RST X-4 you receive. Message for more details. Color
: Midnight Black
All colors do vary somewhat from the picture shown Core
: RST Core (Roto Star Tour Core)
Coverstock
: MicroTrax Pearl Reactive
Finish
: 1500-Grit Polished
RG
: 2.53
Differential
: 0.053
Recommended Lane Condition
: Medium/Heavy Oil
Hook Potential
: High
Length
: Middle
A few tiny pit holes in the cover stock of the ball are normal
SKU:
BBXRXF15L
Brand:
Category:
Ball Performance:
Returns Accepted for this item if it's within 30 Days