From the very beginning, Roto Grip's aim was clear for the Tour Dynam-X: to design and produce a cutting-edge bowling ball that revolutionizes performance with a fresh and focused approach. Responding to the requests of top-level tour players and skilled bowlers worldwide, they set out to create a ball that offers exceptional control, unwavering continuation, and minimal deviation, enabling them to conquer even the most challenging and reactive lane conditions. Roto Grip heeded their feedback and embarked on an intensive journey to develop the ultimate "TOUR PLAYER" ball. After numerous trials and a learning process filled with valuable mistakes, they successfully engineered a bowling ball that delivers optimal control and seamless continuation for every bowler, regardless of their rev rate. Their approach began by lowering the RG (Radius of Gyration) to initiate early core motion. This crucial adjustment resulted in the ball staying on its intended path for an extended period, reducing the typical directional change associated with high-performance balls. As if that weren't impressive enough, they also incorporated a mild asymmetry aspect into the design. This addition further enhances the ball's ability to maintain its trajectory while generating enhanced power as it drives through the pin deck, all while minimizing overall deflection. In summary, Roto Grip's relentless pursuit of excellence led them to create a game-changing bowling ball that fulfills the demands of tour-level players and skilled bowlers around the world. Its unrivaled control, seamless continuation, and extended precision on the lane make it the ultimate choice for those seeking an unparalleled bowling experience.

Color: Dark Cyan / Onyx
All colors do vary somewhat from the picture shown
Core: Rondure Tour (14-16#)
Coverstock: TourTrax Solid Reactive
Hook Potential: High
Finish: 2000-grit Abralon
RG: 2.47 (for 15# ball)
Differential: 0.026 (for 15# ball)
Recommended Lane Condition: Medium Oil

Lane Condition
Length: 40
Volume: Medium
Type (THS, Sport Pattern etc): THS

Comments
The Tour Dynam-X is our new solution for urethane! The Tour Dynam-X has our Rondure Core that was in the Rubicon Series, and the Tourtrax Cover. I see this ball being useful with a lot of friction. It has an early and controllable shape which you will see in a lot of urethane balls. But the low differential, this gets you as close as possible to that exact shape.

Social Media
Click This Link Below For All Social Media :
https://linktr.ee/ethanfiore300

Coolwick
Coolwick Customizable Jerseys
Save 10% on your order by using code Efiore10
https://www.coolwick.com/

Bowler Stats
Ethan Fiore
⭐PBA Member⭐Roto Grip Staff⭐CoolWick Staff⭐Tournament Director⭐
Right 2 Handed
Rev Rate: 500
Speed: 17.5
PAP: 4 1/8 up 7/8

Tour Dynam-x
It says it all in the name... Tour. This ball exceeds on tougher conditions like the pros see on tour, but don't get me wrong this bad boy also works wonders on a house shot. With is smooth, predictable, and very controlled motion you get an asymmetric shape with the continuation through the pins like a symmetrical core would.

-Joshua Tajiri
Tajiri's Ball Reviews

Bowler Stats:
Speed: 15.5 MPH
Rev Rate: 275 RPM
Tilt: 3-5 degrees
Axis Rotation: 60 degrees
PAP: 5 ⅜ over 1 ¼ up

Layout:  41/4 X43/4 X 2 VLS

With the release of the Tour Dyman-X during the PBA 50 Season I was not sure how I would match up with the design of the Rondure core. After seeing the core numbers and it being a weaker asymmetrical core I decided to put a stronger layout on it rather than my normal one. I thought it may give me a urethane type of motion off the end of shorter patterns since I didn't have urethane as an option in my arsenal. Unfortunately I think I missed on the layout because it’s very confused on the house and sport patterns.

The 41/4 inch pin placement gives me the proper length with the weaker core but the 43/4 mass placement doesn’t allow the ball to flare enough when it begins to read the dry at the end of the pattern. I used a similar drilling I would use on an !Q Tour solid since this ball was to be slightly stronger with the same type of ball motion.

I changed the cover to 1000 abralon by hand and that helped it read the house pattern for my ball review video but as it shined up it still was confused.

I plan to drill another one and change the mass bias placement in the VLS layout to 4 inches and so it will flare more to match my lower rev rate.

Pete Dohan
Storm Bowling Amateur Staff
#StormNation

Layout: 30 x 4 x 65

The Tour DynamX has a very unique ball reaction that, as intended, is best compared to the Storm IQ Tour.  It is very smooth and predictable, though the added asymmetry gives it a touch more downlane kick.  It does not pick up too early, and saves everything for the midlane. With surface, this ball is good on heavier or flatter fresh patterns. For me, the smooth arcing nature of this ball lends itself to being much better when straighter angles or a “down and in” line is needed. Once I have to move left, balls like a TNT Infused or Clone come around the corner better.  I find that this ball is a great alternative to using urethane.

Mike LeViner

About Me
900 Global Staff
Left Handed: High Rev High Speed Player
Pap: - 47/8   +1
Rev Rate: +-500
Speed 17-18mph

Layout: 4 ¾ X 3 ½ X 1

Ball Video: N/A

Sneaky good and very predictable.  I haven’t had a chance to throw the Tour Dynam-X very much before I had surgery.  The Dynam-X was definitely stronger than I expected.  I had heard different reviews on what this ball was supposed to be.  I heard it was supposed to be strong and I also heard that it was supposed to be weak and roll more like urethane.  Both of those reviews are correct.  What I mean by this is the Dynam-X is a strong ball but has a roll like urethane.  The reason I say it rolls like urethane is because of how early it picks up on the front part of the lane and starts reading the pattern and then gets down lane and breaks and has the nice strong controllable finish through the pins like urethane. 

No, I am not saying that this is taking the place of your urethane equipment because it’s not.  What I am saying is the roll reminds me of a very, never seen before strong urethane ball.  The Dynam-X hooks like a solid and is very controllable and hits like a tank.   I truly believe that the Tour Dynam-X is going to be useful on all different types of patterns, be very versatile and shoul make your line up, I know it’s making mine. 

Joel Donner
900 Global Staff Member
Cedar Rapids, IA

#StormNation
#StrikingWorldwide
#RGSquad
#Iambowling
#teamiambowling
#bowlingisfun

The new Roto Grip Tour Dynam-x features the Rondure Tour Core wrapped in Tour Trax solid reactive coverstock.  At 15 pounds the ball has an RG of 2.47 with a differential of .026 and an intermediate differential of .010.  I drilled this with the pin above the bridge.  The Tour Dynam-x low differential will allow bowlers to keep their angles closed longer and play closer to the friction than most reactive balls would.  This ball is a must have for tournament players as well as league bowlers.  The Tour Dynam-x is very controllable for the tougher patterns as well as blending out the wet/dry house patterns.  This is a heavy rolling ball which not only excels at going up the boards, but it also performs well when you need to open your angles a little bit.  This is one of those balls that won’t wow you with overall hook or backend motion.  All it does is give the bowler a consistent reaction with excellent pin carry, keeping you out of trouble and in the pocket striking longer!!