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Roto Grip

Roto Grip Gremlin Tour-X Bowling Ball

(41 reviews) Write a Review
  • Roto Grip Gremlin Tour-X Bowling Ball
  • Roto Grip Gremlin Tour-X Bowling Ball
  • Roto Grip Gremlin Tour-X Bowling Ball
MSRP: $269.95
$164.95
— You save $105.00
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Description

Roto Grip Gremlin Tour-X Bowling Ball

  • Color: Smoke/Velvet/Ink
  • Coverstock: V-R1 Hybrid Reactive
  • Weight Block: Rondure Tour-X Core
  • Factory Finish: 4000 Abralon
  • Flare Potential: Medium
  • Radius of Gyration (RG): 16lbs - 2.48; 15lbs - 2.48; 14lbs - 2.52
  • Differential (Diff): 16lbs - 0.032; 15lbs - 0.034; 14lbs - 0.034
  • Intermediate Differential (Diff): 16lbs - 0.010; 15lbs - 0.011; 14lbs - 0.010
  • Fragrance: N/A

Additional product information:

CORE TECHNOLOGY: The Rondure™ TOUR-X Core is a precision-engineered modification of the proven Rondure shape. By manipulating the internal mass densities, we have successfully lowered both the Radius of Gyration and the Differential. This intentional shift provides a highly controllable, medium-flaring asymmetric dynamic, perfectly tuned to deliver the smooth, professional-grade motion demanded by elite players.

COVER TECHNOLOGY: The V-R1™ Hybrid Reactive is an advanced, nano-free formulation designed for a more aggressive footprint on the lane. By utilizing a precisely engineered 2:1 ratio—blending two parts solid & one part pearl—this coverstock achieves a potent balance of unadulterated havoc and refined predictability. The solid components ensure maximum mid-lane traction, while the pearl additive provides more response through the backend. The result is a tour-level coverstock that offers consistent & continuous motion.

PERFORMANCE SYNOPSIS: Engineered specifically for bowlers seeking more overall control and a predictable, continuous motion throughout the entire lane. The combination of the Rondure™ TOUR-X Core and the balanced V-R1™ Hybrid Coverstock creates a highly versatile and tunable ball that excels on a wide variety of oil patterns, making it a staple for any competitive arsenal.

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Additional Information

Lane Condition:
Medium/Heavy
Factory Finish:
Sanded 4000 Abralon
Core Type:
Asymmetrical
Coverstock:
Hybrid Reactive
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41 Reviews

  • 5

    Gremlin Tour-X

    Posted by rod radant on Apr 12th 2026

    Latest addition to the Roto Grip family of products is the Gremlin Tour-X. After the success of the Gremlin, the new Tour-X is earlier and stronger than the original. Using the layout of 50x5x30 this really responds down lane. This is a great ball for when the lanes start to transition. Stop into your local Storm VIP shop today.

  • 5

    Great Transition Piece

    Posted by Zack Newman on Apr 12th 2026

    On my Gremlin Tour-X I went with something a little different as far as layout. I went 5 1/2 x 3 x 3. My intention was to keep the ball clean and stable and continuous so when I encounter super chopped up lanes and transition, I can count on this ball to not overreact off of anything it sees. I will say mission accomplished. If you are looking for that type of motion, consider a similar layout. I can see the similarities to the Ion Pro Hybrid that people are mentioning. Not only the colors, but the shape downlane is very similar as well. It does not get forward and lock up due to the reduced flare potential in the core. As a starter ball, it's a little too clean for my liking. If I'm a little hot on my speed, it'll go through it and end up way behind the headpin. This ball likes a little friction on the lanes to start in the right place and be most effective. Having said that, your results may be different with a stronger layout, mine is on the weak side. Overall a great transition ball for me and something that keeps me out of trouble when they get weird.

  • 5

    RG GTX

    Posted by Keith C on Apr 12th 2026

    LANE CONDITION Type:THS after league play MY COMMENTS The Roto Grip Gremlin Tour X is one of those pieces that really shines when you need to control the lane instead of fight it. This ball fits perfectly into my “benchmark control asym” slot—especially when the lanes start getting tricky. Right out of the box (4000 grit), the Tour X reads the lane earlier than cleaner hybrids, but not overly aggressive. The V-R1 hybrid cover gives you that ideal middle ground reaction, clean enough through the fronts, but with a noticeable midlane read. What stands out immediately is how smooth and controlled the shape is more of a matured Rubicon UC2. It doesn’t jerk off the spot, it just rolls forward and continues. I started around my normal line but notice the ball blended the wet/dry extremely well and controlled the over/under. As the transition hit, it became a go-to ball when stronger pieces started jumping or gave weaker pin deflection. Definitely a game 2–3 when carrydown and friction mix together. Not ideal if you want sharp backend motion and too smooth on very fresh/heavy oil Comparison to the original Gremlin which is more aggressive and angular the Tour X give a more controlled, smoother “benchmark asym” in better terms of shape. It's a tour level IQ Tour Solid but asymmetrical and stronger overall for my style. A perfect transition ball, a reliable league/tournament control piece and a reaction you trust when other balls get too jumpy.If your bag needs a ball that lets you stay lined up longer and control the pocket, this is a great addition. 9/10 – Control monster with more than enough punch Visit a VIP Proshop Today #SquadRG

  • 5

    Tournament must have!

    Posted by Joe Arvai on Apr 12th 2026

    Roto Grip Gremlin Tour X Cover: VR-1 Hybrid Cover Core: Rondure Tour-X Core RG: 2.48 #15 RG: Diff. 0.034 PSA 0.011 #15 Finish: 4000 abralon Fragrance: NA Rt hand Speed 13-14 MPH PAP 3 7/8 1/4 over Drilling: 80 x 4" x 40 VLS The new Gremlin Tour-X, a seemingly calmed down version of the Gremlin with the Rondure Tour-X core, hybrid cover at 4000 abralon is a tougher condition dream for my style. Put a length drill pattern of 80 x 4" x 40 on this for my softer ball speed. This ball for me is a touch more aggressive version of the Tour Dynam-X. Out of box with this hybrid cover it wants to read the lane but give a predictable hard arc backend reaction. I was able to play up the boards on heavier patterns and still see enough motion on the back to carry. Once the lanes transitioned, I surprisingly saw a ball I could move in with deep angles and still see enough pop. Tight flare rings are a perfect scenario for my ball speed. I see a continuous ball motion. Cover lane shines quickly. I have been able to just clean cover and not polish as of yet. This is great benchmark ball for me on shorter patterns or any house with friction. Great tournament ball for anyone's arsenal! Joe Arvai 900 Global Pro Shop Staff Member

  • 5

    My League go to

    Posted by Duane Enterline on Apr 11th 2026

    I know you see a lot of reviews that say balls are great, however this one really is. If you are looking for a predictable strong motion without the ball being super early, this is your ball. The Gremlin Tour X has my go to in league. I managed to shoot 846 the 2nd week I threw it. I find it is smooth and controllable, but doesn’t loose axis rotation as some of the other “bigger core” balls do. I see higher carry % vs. those bigger balls. As the pattern breaks down, I am able to move left and increase my rotation and still get a predictable ball motion. This is one of those balls where I will have multiples of.

  • 5

    Gremlin Tour X

    Posted by ward rauch on Apr 11th 2026

    About Me PAP. 4 3/4 right 1 3/8 up Ball speed 17 MPH Rev-rate 450 Layout 50 x 4 x 50 Pattern various patterns The Gremlin Tour X is a silent assassin! The Gremlin shocked me with the amount of energy this ball stores with control is amazing. The lower differential in this ball allows me to attack the transition very well. The ball doesn’t read too early but not too late. I get a very predictable ball motion that sends the pins all over the deck. I recommend this ball to any bowler that bowls competitive tournaments to control transition. The Gremlin Tour X will give you the confidence you need to make shots on difficult oil patterns. Storm Staffer Go Get It!!!!!!!

  • 5

    Roto Grip Gremlin Tour X (GTX) Ball Review by PJ Haggerty

    Posted by PJ Haggerty on Apr 10th 2026

    After loving the first Gremlin that was released by Roto Grip, I was extremely interested in the Tour-X version. The GTX especially caught my eye because of the revisions the team in Utah made to the original Gremlin. The core was adjusted, this coverstock is now hybrid, and the surface was a bit different too. The differential is what caught my eye the most because the GTX has a differential of .034 and the core is still asymmetrical. I’ve drilled one so far, have used it on a variety of different surfaces and patterns, and love it. It’s mapped out as 5 x 4 x 1. This creates a ‘tall’ pin for me, directly above my ring finger, and the CG just on top of my thumb. When I’ve gotten on flatter patterns when scores have been lower, this has been a ball to use to help blend the wet/dry and still go through the pins the right way. I think this is one of the most versatile balls in my bag because the cover is clean enough that it doesn’t burn up, but the differential helps keep it online and not create too quick of a motion. It’s a home run! I believe it’s complimented my Viking, Vengeance, and Hustle X-Ray extremely well. If you need a ball fit in-between options like those listed above, go drill a GTX!

  • 5

    Gremlin Tour X

    Posted by Steven Collins on Apr 10th 2026

    Dual Angle: 70 x 4 1/2 x 25 Storm Vector: 4 1/2 x 5 1/2 x 1 5/8 The Roto Grip Gremlin Tour X features the V-R1™ Hybrid Coverstock wrapped around the Rondure™ TOUR-X Core. The Gremlin Tour X is the perfect early complement to the original Gremlin. This ball is smooth and predictable. This ball has been great to blend out the friction when the lanes are tricky.

  • 5

    Gremlin Tour X Review - Mark Tarkington

    Posted by Mark Tarkington on Apr 8th 2026

    This is what I was expecting the original Gremlin to be. I’ve always been a fan of the Rondure core and was excited to see what this one could do. On house, I’m getting old-school skid/flip. I’ve had a lot of success being able to play left to right with this one. If the puddle in the middle isn’t too pronounced, I can migrate left with the transition and it will stay angular and continuous. I have not altered the surface as of yet, it’s just been getting games with lane shine. I’ve only found success on sport on one occasion, fresh out of box, I was able to play way right on one of the PBA Regional Test patterns. The lanes had transitioned and the Gremlin Tour X was a hail mary to find some success on a bad pair and I was able to bail the game with the back 6, which saved my block. The Gremlin Tour X is going to be in my bag for a long time to come.

  • 5

    Roto Grip Gremlin Tour X review by Chris Pollentier

    Posted by Chris Pollentier on Apr 7th 2026

    Roto Grip Gremlin Tour X Coverstock: V-R1 Hybrid Reactive Finish: 4000-grit Abralon Core: Rondure TOUR-X Core RG: 2.48, Diff: 0.034, PSA: 0.011 (15lbs) VLS Layout: 4 1/2 x 4 x 2 1/4 Dual Angle Layout: 45 x 4 1/2 x 35 PAP: 5 3/16” right x 5/8” up Rev rate: 400 rpm Average speed: 16.5 mph Location: Prairie Lanes, Sun Prairie WI Pattern: Medium volume THS The new Roto Grip Gremlin Tour X (aka, the “GTX”) is an impressive addition to the Roto Grip lineup, designed with a very different intent compared to the original Gremlin. The core in the GTX has been redesigned with a lower RG and Differential making it a much more controllable and medium-flaring asymmetric. Combined with the V-R1 Hybrid Reactive coverstock that’s 2 parts solid and 1 part pearl, the GTX was built to deliver a predictable and continuous motion throughout the entire lane. For those that we’re a fan of Storm’s Ion Pro and may be looking for a replacement, the GTX is it. Just like the original Ion Pro, the Gremlin Tour X is perfect on medium to medium-light oil volume and has offered a solid balance between control and power. For me, the Tour X fits right in between the Rockstar and balls like the Ultimate Wrecker or Hustles. The Tour X has a very predictable motion from front to back, making it an ideal ball given the number of centers with older lane surfaces in my area – it’s clean enough to handle the extra friction while still being able to provide good down-lane continuation. For anyone looking for a Storm Ion Pro replacement, the Gremlin Tour X is as close as you’ll get. The Tour X is a balanced, medium-flaring piece that does a good job blending the wet/dry and provides a smooth transition on tournament patterns. From everything I’ve seen, the Gremlin Tour X fits the bill as a more disciplined, “tour-ready” ball. Chris Pollentier Storm Products Pro Shop Staff

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