Roto Grip RST X-4 Overseas Bowling Ball

Roto Grip RST X-4 Overseas 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.

Weight	15 lbs
Dimensions	9 × 9 × 9 in
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

Place your order before 2PM EST and your order will ship out same day for in stock and available products. In stock items will ship out the following weekday if purchased after 2PM EST.

BowlersMart.com is happy to provide FREE Express shipping for items that are in stock and available to the following states:

FREE Express Delivery within 2 Business Days to Florida, Alabama, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, Ohio, South Carolina, Tennessee, Virginia

FREE Express Delivery within 3 Business Days to Arkansas, Connecticut, Delaware, District Of Columbia, Illinois, Indiana, Iowa, Kansas, Maine, Massachusetts, Pennsylvania, West Virginia, Missouri, New Hampshire, New Jersey, New York, Oklahoma, Rhode Island, Texas, Vermont

For states not listed above, in stock Items may take 3-5 business days to arrive depending on your location. (2-10 days in AK, HI, PR, GU, APO, FPO).

We use USPS Priority Mail, Parcel Post, UPS and FedEx as our methods of shipping. Ground Shipping is ALWAYS free in the USA (except Alaska, Hawaii, Puerto Rico, Guam, and APO / FPO addresses), no matter how many items you order, no matter the weight, no matter the distance!