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Roto Grip Theory Small Core Image
Roto Grip Theory
$128.99 Retail: $209.99Save 39%
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Product Features & Description
Roto Grip Theory
SKU: RGBBMRTY
Brand: Roto Grip Bowling


- Coverstock: Insight Solid Reactive
- Weight Block: Triliptic Core (14-16 lbs), Modified Triliptic Core (12-13 lbs)
- Ball Color: Two Tone Red/Royal Blue All colors do vary somewhat from the picture shown.
- Lane Condition: Heavy Oil
- Ball Finish: 2000-grit Abralon
- Flare Potential: 7+ inches
- RG: 16#-2.49, 15#-2.49, 14#-2.54, 13#-2.57, 12#-2.59
- RG Differential: 16#-0.051, 15#-0.058, 14#-0.049, 13#-0.032, 12#-0.029
- A few tiny pit holes in the cover stock of the ball are normal
- Description: Introducing Roto Grip's all-new Theory with revolutionary technology. Equipped with a highly advanced interior, the Triliptic core delivers consistent axis migration and predictable ball motion. The Insight coverstock takes a step forward in technology from its predecessor the Cytoplasmic series of covers found on the Cell line. It ensures ultimate traction through the oil and relentless motion through the pin deck. This combination gives an entirely new definition to mind-blowing!
Avg. Customer Rating:5 stars
(based on 7 reviews) Reviewers described themselves as: League bowler (5)
  • Pros
    • Attractive (3)
    • Flawless surface (3)
    • Comfortable grip (2)
  • Cons
    • Ugly graphics (1)
  • Best Uses
    • Local bowling alley (4)
    • Tournaments (3)
    • Upgrade (1)
Already own the Roto Grip Theory bowling ball? Write a Review REVIEWED BY 7 CUSTOMERS sort by:
Displaying Reviews 1-7 of 7
Displaying 7 Reviews
[20 of 20 customers found this review helpful]
ThEoRy rocks the pins!! By RotoGripRick from East Berlin, Pa.
Reviewed on: 11/17/2010 Verified Reviewer Pros:All around strong ball Best Uses:House and blue pattern Bottom Line:Yes, I would recommend this to a friend My specs: left hander, 230 plus average 3 & 5/8th and 1/16th up, 17+ plus ball speed ,bowl in several leagues in 2 counties and bowl in about every tournament locally and state and nationwide. Layout recommendation from Mike Sinek: 55x4 ¼x60 pin below middle finger, condition and no weight or P-hole. First reaction was the ball roll similar to the cell, but a more total hook and a lot less deflection going through the pin rack. After using it for about 20 games the reaction, unlike other solid reactive balls, has not change one bit and has not diminished one bit. Overall, a continuous arching ball with a ton of hitting power in the back end that shows no signs of slowing down. Thanks to Mike and Matt at Roto Grip for the support. Was this review helpful to you? Yes / No- You may also flag this review.

[4 of 4 customers found this review helpful]
this is one bad a.. ball By roto grip fan from spotsylvaina va
Reviewed on: 1/11/2011 Verified Reviewer Pros:Turns left Cons:Havnt seen any yet Best Uses:This ball needs some oil Bottom Line:Yes, I would recommend this to a friend roto grip has done it again this is the best ball since first cell if you dont have a theory get one go see them at [...] top notch pro shop Was this review helpful to you? Yes / No- You may also flag this review.

[1 of 1 customers found this review helpful]
Perfect for stroker! Love this ball! By Danny the "gut"ter from Edmonton, AB
Reviewed on: 3/11/2011 Verified Reviewer Pros:Attractive Design, Big backend, Aggressive coverstock Cons:Suck up oil very quickly Best Uses:Upgrade, Local Bowling Alley, Tournaments Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend I have been doing research on the internet to look for a ball as an upgrade from C-system 4.5. My c-system slides too much and it just does not work for league because they put so much oil on the lanes. After making adjustment, sometimes I just can't get the c-system to hit the pocket. But with the Theory, it rocks! Trust me, this is perfect for stroker who has a lot of speed but not much hand. You can't go wrong with Theory. However, one thing I noticed was that it quickly soak up oil. You gotta take good care of it. Otherwise, it will die very soon. Was this review helpful to you? Yes / No- You may also flag this review.

[1 of 1 customers found this review helpful]
sick nasty By jake from ny
Reviewed on: 2/12/2011 Verified Reviewer Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend Just bought this ball this week from a local pro shop its an absolutely nasty ball works great money well spent Was this review helpful to you? Yes / No- You may also flag this review.

[1 of 1 customers found this review helpful]
very predictable reaction..... By einstein from detroit michigan
Reviewed on: 2/9/2011 Verified Reviewer Pros:Comfortable Grip, Attractive Design, Flawless Surface Best Uses:Local Bowling Alley, Tournaments Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend I am a full roler. Yes we are still out there. Out of the box. 784. Very smooth.No wet dry to deal with. As lanes broke down very smooth, easy transition. Glad the ball is in my bag. Could not be happier. Was this review helpful to you? Yes / No- You may also flag this review.

THIS BALL HAS CHANGED MY GAME .... By TATER from LAVERGNE TN
Reviewed on: 6/6/2011 Unverified Pros:Flawless Surface Cons:Ugly Graphics Best Uses:Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend FIRST ROTO GRIP BALL HARDEST HITTING BALL THAT I HAVE SEEN IN ALONG TIME ..MY FIRST SERIES OUT OF THE BOX 715 FINISH LEAGUEWITH 212 AVERAGE .. Was this review helpful to you? Yes / No- You may also flag this review.

Roto Grip Never Disappoints By Kacey from Massachusetts
Reviewed on: 4/21/2011 Unverified Pros:Flawless Surface, Comfortable Grip, Attractive Design Best Uses:Local Bowling Alley, Tournaments Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend This ball is just amazing. I have owned several Roto Grip balls and this is my favorite so far. This ball is very similar to my Roto Grip Cell. Has just about the same reaction but is much stronger through the pins and doesn't have any deflection. I have my ball drilled the same layout as my Cell to go long and strong. I average 231(house) 216(sport) and i had no problem averaging 240 right out of the box. My first tournament with the ball i won with a 809 series. Was this review helpful to you? Yes / No- You may also flag this review.