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Author Topic: Tour Dynam-X  (Read 7905 times)


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Tour Dynam-X
« on: August 30, 2023, 12:48:45 PM »
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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



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Re: Tour Dynam-X
« Reply #1 on: August 30, 2023, 02:58:34 PM »



Type (THS, Sport Pattern etc):THS

15 Mph
340 RPM
PAP 4 7/16> 5/8^
Right Handed
Ave 220-230
Visit the YouTube channel for reviews!

Tour Dynam-X
4 3/8x4 7/8x2
RG 2.47
DIFF .026

The Tour Dynam-X is an interesting one. A super low diff @ .026, this ball is extremely controllable down lane and basically looks like a symmetrical solid. The slight asymmetry is something we’ve seen a little of before but this ball takes it to another level. This will be the first ball out of the bag for a lot of players. It will allow the higher rev rates to control the lane and the lower rev rates/low speed to get just enough traction to be in play a lot. This should be a consideration for almost everyone’s bag.





Oliver Lawson

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Re: Tour Dynam-X
« Reply #2 on: August 31, 2023, 01:27:45 PM »
The Tour Dynamix from Roto Grip is a brand new concept with the modified rondure core. It has a significantly lower differential and RG compared the the original core, which helps provide less flare and less overall hook. Wrapped in the new Tour-Trax solid coverstock, the Tour Dynamix gives a much more forgiveable ball motion than other balls in the line-up. Compared to the IQ Tour, the TD creates more shape down lane and is not as early. The IQ Tour is a little bit rounder and earlier. I drilled both the TD and IQ Tour 3.75x4x4 2LS and both of these give me a very controlable motion down lane. The TD helps blend some of the over/under we see on house conditions and cliffed sport patterns.


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Re: Tour Dynam-X
« Reply #3 on: September 19, 2023, 12:45:50 AM »
The all new Tour Dynam-X is highly anticipated for every competitive bowler. It uses the Rondure Core wrapped around with Tour Trax solid which gives outstanding versatility and control. Unfortunately, I don’t think this is the urethane replacement most people were hoping it to be but don’t let that deter you away. My first impression it hooks much more than expected. It digs a good amount in the mid lane with a smooth but strong continuation. I compared to to my Reality and it’s been a great ball down choice once the Reality starts to burn up or when I need to play straighter. The Tour Dynam-x will always be in my bag whether it’s house shots or sport patterns I think that’s what makes it so good. I will say be careful will layouts and don’t go too crazy because i have my standard pin up on mine and when I start to get around the ball the track moves close to my thumb and fingers. 
     Andrew Smith
    Storm staff
    Rev rate 420+
    Speed 16.5


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Re: Tour Dynam-X
« Reply #4 on: September 25, 2023, 02:15:39 PM »
Hey everyone, I'm back with another ball review, and this time it's for the Roto Grip Tour Dynam-X!

In 14 pounds this ball is wrapped in TourTrax Solid Cover and comes with A 2000 grit finish and an RG of 2.52, Diff of .026, and an MB of .008.

The Tour Dynam-X is the newest ball from Roto Grip and right after throwing this ball, you can tell that this ball is different. The technical numbers of this ball make it a great middle-of-the-bag ball AKA benchmark ball. This ball comes with some surface and at 2000 it blends the lane instead of being too quick to hit all three phases of ball motion. I use this ball later in the night during league when they get wet/dry but really see this ball shining more on the tournament side where you see different lane conditions and oil patterns. This ball takes to surface changes very well and depending on what you are looking for play with the surface to get what you looking for.

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Brian Hirsch
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Tour Dynam-X
« Reply #5 on: October 01, 2023, 05:44:38 PM »
Ball Specs:
Roto Grip Tour Dynam-X
Cover Tour Trax Solid Reactive
Asymmetric Core
Finish 2000 Abralon
Layout 3.5 x 4 with 2-1/2” Pin Buffer

Bowler Specs:
Right Hand. PAP 5” Over 1/2 up
Rev Rate 300. Tilt 20. Rotation 50.
Speed at release 17

The new Roto Grip Tour Dynam-X is a very nice rolling addition to the Roto Grip Line. This ball has the predictability you would expect from a “Tour” type ball but the Dynam-X has more motion and drive for me than my IQ Tour Navy. I was able to play different lines with this ball and it is equally useful on house or sport patterns. I feel the asymmetric core contributes to the control aspects of this ball without overpowering the cover. An added bonus of the Tour Dynam-X is that it polishes so easily and it still maintains the predictable roll it had dull at box. It looks great with polish also. We used it at dull box for the video. There are so many good medium type balls coming from the Storm, Global and Roto family you cannot go wrong. Roto Grip lists this ball a bit weaker than I see it, but we all bowl on different conditions and surfaces. I think we will see this ball being used in the tour stops when a bit more motion than an IQ Navy is required. I had my best look with this ball keeping my lines in front of me just inside the friction. The Tour Dynam-X fits between the Hustle USA and the original Gem in my Roto line up. This ball seems to roll nice than make a predictable move at the right time and carries through the pins with great carry.

The Tour Dynam-X should be a tour favorite.
The Tour Dynam-X has a bit more pop at the back end than my IQ Tour Navy.
This ball could also be used as a asymmetric benchmark solid.

Glenn Wendel
Storm Pro Shop Staff
Video Link:

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Storm Staff Member
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Re: Tour Dynam-X
« Reply #6 on: October 02, 2023, 05:45:45 PM »
Sleeper ball of the decade!!! Roto Grip coming out with some fire with the new Tour Dynamix! An RG of 2.47, Diff of .026 and and intermidiate of .010 wrapped with the Tour Trax coverstock. What you'll see out of this ball is a very smooth and predictable ball reaction that contiues through the pins. This ball is a asym IQ Tour that is earlier with the same amount of continuation. I have thrown this ball across a variety of patterns and its usually the first ball out of my bag when I am looking for something that is slightly stronger than my symetrical solid options, but not something as strong as somethig like a Reality or Gem.
Even on easier shots, this ball blends the over/under better than I have ever seen a ball do it. You need one...or two. NOW!


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Re: Tour Dynam-X
« Reply #7 on: October 03, 2023, 04:13:13 PM »
Roto Grip Tour Dynam-X

Coverstock: TourTrax Solid Reactive

Finish: 2000 Grit

Core: Rondure Core

RG: 2.52

Differential: 0.026

Int Diff: 0.016


My early reactions to the new Tour Dynam-X is it is much stronger than I anticipated. It has a very smooth reaction through most of the lane but very strong. I compare this to IQ Tour, but earlier and stronger. Very versatile ball as I am able to throw on fresh house shots, as well as medium to medium heavy oil sport shots. What impresses me the most about this ball is how low it keeps the pins when it hits, creating a lot of pin action. This bowls well for out of box as well as shined up, it is probably the most versatile ball in my bag currently.


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Tour Dynam-X
« Reply #8 on: October 15, 2023, 08:39:12 PM »
The all new Roto Grip Tour Dynam-x features all new technology with control in mind. This ball is a unique piece that will be a great addition to any tournament players bag. This ball was built with tour players in mind, they wanted to have a ball that would give a controllable ball motion that does not deviate from its line very easily. In my mind I feel like this ball was created to give a urethane feel without the ball destroying an oil pattern. From what I have seen from this ball so far I will be able to throw this ball on a variety of patterns, this ball doesn’t do anything spooky. For someone that has a higher rev rate, this ball will allow me to stay further right on more patterns which is something that I am always looking for. I am extremely happy with this ball so far and I look forward to using it in more settings! Go out and get yours today!

Luke Rosdahl

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Tour Dynam-X Review by Luke Rosdahl
« Reply #9 on: October 24, 2023, 12:47:34 PM »
User Specs: Left handed, 375 rev rate, 17mph speed, 45 degree angle of rotation, 7 degrees tilt

Layout: 4 ¾ x 3 ½ x 2 ½

The Tour Dynam-X is a new mildly asymmetric ball in Roto Grip’s HP3 line.  It features the new TourTrax cover which is medium to lower strength.  The core is the new Rondure Tour core, which shares the shape of the original Rondure core from the Rubicon series, but the density has been adjusted to lower all 3 numbers down to 2.47 for the RG, .026 for the differential, and .010 for the intermediate differential in 15 pounds.  On paper, this is a mildly asymmetric IQ Tour type of ball. 

The box surface is 2000, and it’s surprisingly strong at this surface.  However, because it’s a medium to lower strength cover, it weakens significantly as it shines.  However again, this makes it incredibly versatile.  With surface it has the traction and stability to be in play on tougher sport patterns, and with shine it’s surprisingly usable and effective on league patterns.  The super lower RG helps the ball control the midlane, while the low differential and mild asymmetry helps keep it very stable and controllable. 

The Tour Dynam-X feels like a smoother and weaker version of the Phaze 2.  The shape is identical, the same slightly directional arc that’s very responsive to hand changes and physical adjustments.  I think it’s an evolution of the IQ Tour Solid in that it does all the same things the IQ Tour does, but the versatility is increased substantially.  Like I mentioned, the TDX is a step down from the Phaze 2 but a step up from the Hustle RIP. 
Storm Amateur Staff
Turbo Regional Staff
YouTube Channel:
Twitter: @LukeRosdahl

PJ Haggerty

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Re: Tour Dynam-X
« Reply #10 on: October 31, 2023, 06:16:39 PM »
Roto Grip Tour Dynamx Ball Review by PJ Haggerty

One of the newest additions to the HP3 line at Roto Grip is the Tour Dynamx.  After drilling several balls a year from the Utah plant, I’d have to say this is one of the more unique ones I’ve drilled.  Bowling as a game is evolving with the urethane rules frequently changing, and I believe the Tour Dynamix is a ball that can be used to try and replicate a urethane-type reaction while still throwing reactive.  The numbers, characteristics, and shape of the Dynamx are unique and I think, impressive. 
The coverstock is extremely strong.  It’s wrapped with the Tour Trax coverstock and inside is the Rodure core.  With that combination, the numbers come out to 2.47 RG, .026 differential, and .010 PSA.  With the differential being very low (IQ Tour levels), the Dynamx doesn’t flare a lot.  When you drill it, I’d recommend drilling it closer to 4-4.5” from your PAP to make sure it flares enough.  Don’t be shocked when you look at the oil lines and they are extremely tight together.  It’s perfectly normal.  However, when you throw it, this ball will read early, often and feel very strong. 

I think this could be a great ball to use to combat some of the urethane battles bowlers have.  With a strong cover and low diff, I think this will eliminate a lot of that over/under bowlers notice when they are following urethane or having to complete against it.  I’ve drilled one so far and really like it.  It’s drilled with the pin below my ring finger with a good size shift of the CG and mass bias.  The numbers come out to 4.5 x 3 x 30.  I’m keeping this one relatively dull too.  I’ve kept the surface at 2000 to make sure when it use it, it picks up and goes through the pins the right way.

This ball is awesome!  Just make sure you drill it stronger to assure it will flare enough!


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Re: Tour Dynam-X
« Reply #11 on: October 31, 2023, 06:40:49 PM »
To me the tour dynamics is almost a cross between a phase 2 and the IQ Tour.  It is okay for this old stroker on a house shot, but should really shine on medium to shorter sport type patterns.  This ball like to be rolled on more direct lines.  Also like some of my favorite balls out of Utah I like after it lane polishes better than with surface.


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Re: Tour Dynam-X
« Reply #12 on: November 04, 2023, 06:12:59 PM »
Roto Grip Tour Dynam-X – WWRD 8/18/23
Cover: TourTrax Solid Reactive Core: Rondure Tour Core RG: 2.47 RG. Diff.: 0.026 Finish: 2000 Abralon Roto Grip’s new Tour Dynam-X is a Solid Asymmetrical Low-Medium Flare piece that is good for Medium-Heavy Oil conditions. PAP is 5 5/16 R 1 3/16 Up. Rev Rate: 400. Speed: 16.5. Drilled this piece with the Pin above the bridge, CG kicked out a 1”, and Mass Bias 1” to the right of the Thumb. I threw this piece on a fresh 41’ house pattern. Out of Box ball motion was clean through the fronts started early in the mids with a smooth continuous backend reaction. I compared this piece to the Storm IQ Tour, 900 Global Reality and Xponent, and Storm Phaze II. IQ Tour (Symmetric) was 4-4 right with an overall smooth motion. Reality (Asym) was 2-2 right but with a smooth continuous back motion. Xponent (Symmetric) 2-2 right with an overall smooth motion. Phaze II (Symmetric) was similar shape but stronger on the backend. This piece will be good for all types of styles.


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Re: Tour Dynam-X
« Reply #13 on: November 09, 2023, 08:20:34 PM »
One of the most versatile balls ive ever thrown, ive used it on short, medium, and long patterns, ive used it on house shots all across houston, its the first ball in the bag and first ball on the lanes. It takes everything i love of the iQ tour solid and makes it asymmetrical, which means i can get further left without worrying if its gonna miss the spot or be too clean. It hooks early without losing energy, it recovers when you miss out, ive never had a better stretch of weeks in league with any other ball, it still rolls great with surface or with lane shine, its just a great ball for any player.
I am a two hander with about 450 revs but i feel like ive seen so many people match up with it, from up ten dumpers to regional tour guys, and especially some pros. Ive drilled two, with another one coming soon.

Layout: 50x5x50, 40x5.5x35, next one will either be 50x2.5x60 or 40x4x40 to be even earlier and stronger

Watch this youtube video over it:
And the rest of the videos on our channel at Striking Results Pro Shop


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Re: Tour Dynam-X
« Reply #14 on: November 11, 2023, 12:56:49 PM »
Roto Grip Tour Dynam-X
Coverstock: TourTrax Solid Reactive
Core: Rondure Tour
Factory Finish: 2000 Abralon
Layout: 4 x 4 x 2

YouTube Video Link:

The Dynam-X quickly found a way into my league and tournament bag. It provides control and continuation while still having a nice strong reaction. I am not sure I have ever thrown a ball that does what the Dynam-X does on the lane. It pops off the dry but isn't anything resembling angular. The other control piece in the HP3 line is the TNT, which is a lot earlier than the Dynamic-X. The shiny options in the HP-3 line are the TNT Infused and the Duo. The Infused and Duo are clean and responsive to friction, much more so than the Dynam-X. The addition of the Tour Dynam-X allows Roto Grip’s HP3 line to cover a lot of bases of ball reaction.

The Tour Dynam-X is a well rounded ball that covers a lot of bowlers and skill levels, especially in today's high friction lane environment where slow ball speed is a killer and controlling hook is king.