Roto Grip RST X-4 Bowling Ball

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.

Roto Grip RST X-4 Overseas Bowling Ball

$299.95 $199.95

BRAND	Roto Grip
BOWLING BALL CORE SHAPE	Asymmetrical Core
BOWLING BALL CORE NAME	Roto Grip RST Core
BOWLING BALL COVERSTOCK TYPE	Reactive
BOWLING BALL COVER NAME	Roto Grip MicroTrax Pearl Reactive
RADIUS OF GYRATION: RG (15LB)	2.53
DIFFERENTIAL: DIFF (15LB)	.053
FLARE POTENTIAL	4 – 5 Inches
MASS BIAS STRENGTH	.016
SURFACE FINISH	1500 Grit Polish
BALL WEIGHT	12LB, 13LB, 14LB, 15LB, 16LB
BOWLING BALL COLOR	Black, Blue
SCENT	None
BALL PERFORMANCE LEVEL	High Performance Bowling Balls
BALL LANE CONDITIONS	Heavy Oil

 

Roto Grip Clone Bowling Ball

We are dedicated to improving players’ ability to conquer various lane conditions and comply with governing rules. This led us to create the asymmetrical Cloned E.T.™ Core (Equalizer Technology Core). By featuring built-in cavities, this avant-garde technology can increase weight displacement after drilling, without the need for a balance hole, resulting in greater ball motion.

Engineered for medium-heavy to heavy oil conditions, this cloned E.T.™ Core is truly exceptional. The base of the inner block contains built-in cavities, mirroring the effects of an extra hole, depending on your chosen drill. Given balance holes are no longer legal in sanctioned competition, we’ve devised a solution for capturing more flare potential and dynamics.

Our innovative E.T.™ Core boasts a lower RG and high differential, the perfect recipe for increased flare potential. However, by integrating these “equalizer cavities”, we’ve unlocked even more built-in dynamics after drilling.

Experience unrivaled midlane traction and friction response with the new OptiTrax Solid Coverstock’s blend. Its prolonged texture ensures your ball maintains maximum performance by displacing oil faster than other coverstock materials on the market today.

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.

Out of stock

Roto Grip Clone Bowling Ball

BRAND	Roto Grip
BOWLING BALL CORE SHAPE	Asymmetrical Core
BOWLING BALL CORE NAME	Roto Grip Cloned ET Core
BOWLING BALL COVERSTOCK TYPE	Reactive
BOWLING BALL COVER NAME	Roto Grip OptiTrax Solid Reactive
RADIUS OF GYRATION: RG (15LB)	2.51
DIFFERENTIAL: DIFF (15LB)	.056
MASS BIAS STRENGTH	.016
FLARE POTENTIAL	5 – 6 Inches
SURFACE FINISH	Storm Reacta Gloss
BALL PERFORMANCE LEVEL	High Performance Bowling Balls, Roto Grip HP4 Bowling Balls
BALL LANE CONDITIONS	Medium – Heavy Oil
BOWLING BALL COLOR	Black, Green, Purple
BALL WEIGHT	12LB, 13LB, 14LB, 15LB, 16LB

 

Coolwick Jerseys

Stay 40% cooler with CoolWick. Bowlers Rant Coolwick Bowling Jerseys are made of two different fabrics. The back being our CoolWick technology fabric that helps wick moisture away and helps air flow more easily through the fibers.

With high quality graphics and vibrant colors, these jerseys are sure to turn heads.

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