Roto Grip RST X-1 Squad Overseas Bowling Ball

Roto Grip RST X-1 Squad Bowling Ball

BEHIND THE DESIGN…
Dating back to the mid-1950’s, there is a reason Roto Grip is often referred to as the “Original High-Performance Bowling Ball Specialists.”

Our latest asymmetrical creation continues that tradition with the development of the RST Core which produces consistent core torque and energy transfer down lane where it is needed most.

From there we formulated the most versatile MicroTrax Hybrid Coverstock to date which produces optimum responsiveness to both oil and friction.

It’s ok, you can thank us later!

RST – Roto Star Tour Core…
Professional bowlers like to see continuous motion down lane with minimal deflection as the ball enters the pocket due to their rev rates usually being on the higher side. This logic was the basis of development by the R&D team as they looked to create a core that would maintain dynamics after drilling in order to maintain a higher level of core torque down lane. The larger mass at the base of the core does indeed create that. Especially since when drilled, the thumbhole will always end up near the bottom of the void area not to affect the bottom mass of the core all that much. Thus, making this core a “Tour Level” type core design.

Behind the X-1 name…
When it all began back in the early 1950’s, Roto Star (later known as Roto Grip) quickly became known as the “High Performance Bowling Ball Specialists.”

Because of this industry leading mantra, and with the latest creation of the Roto Star Tour Core, it only made sense to go back in time to recapture the vibe and pay homage to those balls that set the standard for technology and development.

That is how the RST X-1 was born

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 Color	Blue, Purple, Silver
Bowling Ball Cover Name	Roto Grip eTrax Pearl Reactive
Bowling Ball Core Name	Roto Grip RST Core
Differential: Diff (15LB)	.053
Flare Potential	4 – 5 Inches
Mass Bias Strength	.016
Radius of Gyration: RG (15LB)	2.53
Scent	None
Surface Finish	1500 Grit Polish
Ball Performance Level	High Performance Bowling Balls
Ball Lane Conditions	Heavy Oil
Bowling Ball Coverstock Type	Pearl Reactive

Place your order before 2PM EST Monday - Friday (excluding holidays) 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!

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International Shipping - Duties, & Taxes & Return Information

Duties & Taxes - If shipping international, duties and taxes will need to be paid locally. BowlersMart.com is not responsible for any local duties or tax fees.

Returns - We gladly ship worldwide, but please note that international customers are responsible for all return shipping and handling costs. If you wish to return your order, you must cover all shipping fees, duties, and any additional charges incurred. We recommend using a trackable shipping method to ensure your return reaches us safely. For more details, please review our full return policy or contact our customer support team.