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Author Topic: Tour Dynam-x Review  (Read 26410 times)


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Tour Dynam-x Review
« on: August 07, 2023, 02:00:59 PM »
Layout: 4.5 x 3.5 x 3
Surface: 1000 Grit Abralon

The new Roto Grip Tour Dynam-x brings a brand new core and coverstock combination that is a completely new ball reaction in the Roto Grip Lineup!  This is the IQ Tour for Roto Grip but potentially better?!  A modified version of the Rondure Core was brought in here with half the differential as the original for a stronger front of lane move.  What's also great about this ball is its control and predictability.  It reminds me of a urethane ball that is all resin.  This ball is going to be great for harder conditions or where control is an absolute must.  For the normal typical house pattern, this ball would be best on the fresh for lanes that tend to hook a little more than typical or for the down and in player.  This ball definitely favors straighter angles over opening up the lane.  If you are a player looking to find a ball to be up the lane with or looking for your next sport pattern ball, than look no further. 

I was able to test this ball on the Kegel Alcatraz Oil pattern which is 38ft in length with a 2:1 ratio.  What I found on this ball was with my ball speed, the 2000 abralon factory surface was just a little too clean for the pattern I was bowling on.  It gave me a little too much length and not enough down lane reaction.  When I altered the surface to 1000 abralon, I got a much stronger footprint on the lane and it gave me more of the ball reaction I was expecting out of it.  It is a ball definitely designed for the fresh as it doesn't flare a lot.  At the 1000 abralon surface, I was able to throw the ball a little bit more left to right but due to its controllable nature, it didn't go through the pins as strong as I wanted.  I would say this ball would be more ideal for medium to shorter oil patterns and where control is needed.  All tournament bowlers should have this ball in their bag as a staple benchmark ball where urethane is too early and smooth and stronger resin balls are too much hook.  This will fall right in between those two types of balls.  Don't be afraid to add more surface to this ball to get a stronger overall shape.

Adam Chase
Storm Staff
Adam Chase
Storm Regional Staff
Vise Regional Staff
Bowlifi Regional Staff
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Re: Tour Dynam-x Review
« Reply #1 on: August 07, 2023, 03:01:59 PM »
Tour Dynam-X - Ball Specs
Cover Stock: Tour Trax Solid Reactive
Finish: 2000 Grit Abralon
Color: Dark Cyan/Onyx
Core: Rondure Tour Core
RG: 2.47
Differential: 0.026
Intermediate Diff: 0.010

The Roto Grip finally has a tour ball and it is a must for all serious players. For me the Tour Dynam-X is about controlling the tough medium to light oil patterns and the new Tour Trax Solid reactive cover will give you the versatility and playability needed to conquer those types of lane conditions. The Rondure core which was introduced in the Rubicon series has been modified for the tour version with the differential cut basically in half so regardless of your style this Rondure Core version will produce a constant stable motion at the point of release through the pines. I tested this ball on a 40 feet typical house pattern. As a medium to low rev player, I was able to play in the track area and down and in up the five board. This ball stands up in the midlane with a strong finish on the backend. The Tour Dynam-X is a must have for tournament bowlers. Now available for preorder at your local pro shop! My ball reviews are posted on YouTube channel Stanley Waite.

Stanley Waite
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Dover, DE


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Re: Tour Dynam-x Review
« Reply #2 on: August 11, 2023, 07:46:51 AM »
Ball Specs: Tour Dynam – X
Cover: Tour Trax Solid Reactive Cover stock.
Core: Mild-Asymmetrical Rondure Tour Core
Finish: 2000 grit finish
Color: Dark cyan/onyx
The ball may be designed for the “Tour Player” but I can assure you this ball creates versatility for all levels of bowlers. If you are a fan of the Rubicon series, you are really going to enjoy throwing this ball. The same core that was first introduced in the Rubicon series is back and is now modified to create a different shape that many tournament bowlers have been looking for. When I first threw this ball I got the initial thought of this being an IQ Tour if it was symmetric. This is one of those bowling balls that will quickly become a staple in all bowlers’ bags. If you are looking for that asymmetric roll without wanting to break the bank the Tour Dynam-X is a great option. Make sure you pick yours up!
Will Tefft
Roto Grip Pro Shop Staff Member


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Re: Tour Dynam-x Review
« Reply #3 on: August 13, 2023, 12:31:45 PM »
The Tour Dynam-X features a modified version of the Rubicon core and is wrapped in Tour Trax solid. The Dynam-X core is low RG, low differential and mildly asymmetric. The cover is a slightly modified version of what you would find on the Hustle line. These combine well together to give you a ball that produces a similar amount of overall traction to an !Q Tour but allows for infinite more drilling options. This is especially helpful for the no thumb players when choosing a layout. Be sure to get into your local Storm VIP Pro Shop and pre order your own for the 08/18/23 release!

Review Video:


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Tour Dynam-x Review
« Reply #4 on: August 13, 2023, 01:08:27 PM »
The Tour Dyman-X is one the newest balls in the Roto Grip catalog. It features the new mild-asymmetric Rondure Tour Core. It has a Low RG, Low Differential, Mild int diff. This ball is going to be similar to an IQ tour shape but a little earlier and smoother down lane. The flare is very low and tight, almost as if you were throwing urethane with a resin cover. This ball is going to let you control the lanes, especially the backends.

Compared to the Tnt, the TDX seems a touch weaker and is longer but shapes similar. I would have the TDX sitting below the TnT. The TnT was early for me and gave me issues due to the cover strength. The TDX will give you more length and with the mild asym, it will still give you shape down lane.

Compared to the P2, the TDX would be a ball down from the P2 as well. The P2 was much earlier and quicker off the friction, for me. The TDX would be a good ball to transition to when the P2 is starting to read the lanes too early or you need something with a bit more control.

Tobias Myers


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Re: Tour Dynam-x Review
« Reply #5 on: August 13, 2023, 02:04:44 PM »
Initial thoughts on Tour DynamX

Got some practice on Kegel Turnpike yesterday (41' 25mls 2.25:1 ratio). Started out with the Summit and had been migrating inside with breakdown over 8 games. Tour DynamX out of the box let me go back to where I started on the fresh which was about 8/2 right. Misses in were better than misses out as expected with the lower flare.

TDX has tight rotation and tight flare rings. Definitely has a familiar shape, my eyes see it like a combo of the Rubicon Solid & Hyped Solid tuned down.

Looking forward to throwing some more.

Ben Lapointe

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Re: Tour Dynam-x Review
« Reply #6 on: August 14, 2023, 08:19:49 AM »
Ben Lapointe
PAP - 1 1/4'' up, 4 7/8 over
Layout - 5.25 x 4.25 x 3

The Tour Dynam-x is Roto Grip's next installment in their HP3 line. This piece, like the Rubicon is unique because it is an asymmetric ball in a lower line. This ball for me, is the definition to a beefed up IQ Tour Solid. While it is a tad stronger overall, it shows that same controllable motion off  during the entirety of it's path. It is a true middle of the bag ball that will keep you in the zone on most patterns, and tends to be the first ball out of the bag. I could see this ball being very versatile and is definitely recommended for the majority of bowlers, because it is a ball reaction almost no one could pass up. Get yours August 18th and Bowl Up a Storm!!!


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Re: Tour Dynam-x Review
« Reply #7 on: August 15, 2023, 11:52:55 AM »
Roto Grip Tour Dynam-X: Rondure Core w/ TourTrax solid reactive cover.

Layout: 60 x 5 x 35 with 2000 grit Abralon out of the box.

The ultimate sport pattern ball has been unleased onto the bowling world. If you liked your iQ Tour, you will LOVE the Tour Dynam-X. After debuting the ball at Bowl Expo – the buzz started right there, and the buzz has not died down at all. This is the lowest RG and DIFF ball that Roto Grip ever made! So, when I received mine, I instantly had it drilled with a very proven layout I used years ago when I rolled the ball better, and with recent changes in my health and game, I thought it would be best to see if I could re-create that magic from 4 years ago. The TD-X, my new nickname for this ball, worked amazing well on 43ft and 39ft sport patterns that were fresh and then after it was beat up by league bowlers and practice, I hoped back on the lanes and saw the same pin carry and sharpness in the backend when entering the pocket with just small adjustments on the starting point of the approaches and small adjustments getting the ball between the 2 tracer boards down lane. On a fresh medium to heavy house pattern, I was able to stand 18-20 and put the TD-X right up between the tracer boards and was striking like crazy. Was able to get left even more as the pattern conditioner pushed up between the tracer boards and moved to the dry part of the pattern, the TD-X did not hook up early which like solid reactive would normally do, like my Hyped Solid, Zen Master, and Electrify Solid, and held its own and I gain a ton more confidence the more I rolled the TD-X.

For bowlers that are looking to update or replace their main piece in their bag, or if you want to add to your current arsenal to bowl on some tougher patterns, the Tour Dynam-X is the ball for you.

Visit, and check out the latest balls from 900 Global, Roto Grip and Storm bowling balls, bags, accessories, and gear.


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Re: Tour Dynam-x Review
« Reply #8 on: August 18, 2023, 01:14:29 AM »
Core: Rondure Tour Core
Cover: TOURTRAXâ„¢
Finish: 2000-Grit Abralon®
RG: 2.47 (15 lbs)
Diff: 0.026 (15 lbs)
PSA: 0.010

Right-Handed Tweener

Speed: 12-13 mph
Rev Rate: 315
Axis Tilt: 14°
Axis Rotation: 74°
PAP: 5 1/8 R 7/8 Up

Ball Layout: Pin over Ring 4 3/4 X 4 1/2 X 2 1/2 VLS

Roto Grip has added a Tour piece to the HP3 Line. By modifying the Rondure core that was featured in the Rubicon series and pairing it with the new Tourtrax cover, they've created a ball unique to the brand, and to the market. The mild asymmetry of the Rondure Tour core creates a motion dynamic that is unique even from other Tour balls like the !Q Tour series.

I tested the Tour DynamX on the house pattern in my home center. We have a longer, heavier house pattern but very cliffed. I found the Tour DynamX most useful when I got very close to the friction, but still loaded up on the ball a bit. It was very Urethane-esque, where it wanted to read early and layoff down-lane. This pattern is not where I would choose to throw a ball like that normally because of how tight they are down-lane. However the higher ratio of this pattern made so that I could jam the ball into the friction early enough and create angle and actually took a little of the over-under away.

I also threw the Tour DynamX in another house I was visiting for a league sweeper. This house has very quick back-ends, and I tend to struggle there because of my lower ball speed This was where I really saw the unique advantage that the Tour DynamX can provide. Where I might use urethane on a similar condition, it often makes the lanes really tricky as they transition, with most modern urethanes flaring enough to pick up in the front of lane oil, but really causing it to push into the back-end. The result being a constant need to manipulate the shape as the lanes transition and even trickier; finding the correct ball to move into when the lanes transition. The Tour DynamX gives you all of the benefit of urethane type motion without the biggest drawback. The ball going down this part of the lane with a reactive cover actually makes the lanes better for the equipment you transition to.

I would recommend the Tour DynamX for everyone's tournament bag. It's also an incredibly useful piece in houses with quicker back-ends and for very rev-dominant bowlers. It takes well to hand position changes which also sets it apart from urethane as you can stay in it longer without losing carry.

See my full ball reaction video at:

Lonnie Pemberton
Storm Pro Shop Staff
Vise Pro Shop Staff
Revolutions Pro Shop


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Re: Tour Dynam-x Review
« Reply #9 on: August 28, 2023, 02:13:26 PM »
Sam C. Roto Grip Staff
Name of the game with the Tour Dynamx is control. When this ball was announced I was very excited based off the numbers. Lower diff .026 with an intermediate diff of .10. The Dynamx feels like it is stronger than what the numbers say. Threw this ball on the challenge condition 42ft Kegal Chromium which is a shot we use for league I am in on Mondays. This ball let me play a tighter line to start with awesome continuation and power through the pins. You can tell with the way the labels rotate when the ball is reading the lanes and revving up and turning for home. With the little bit of asymmetry of the core it gets the ball moving on the back end more so than a IQ Tour or a Hyped Solid. The reaction is a strong arc. It gives you a very consistent read of what the lanes are doing as well. This will be a first ball out of the bag for a variety of conditions to get a read of what I need to do on the lanes. This ball will be great for people with higher rev rates like myself looking for control. Or even lower speed lower rev players that need to get a ball down lane with control!