Roto Grip Gremlin Bowling Ball

(36 reviews) Write a Review

Your new favorite pearlized ball has been hatched to help advance your game in ways you didn’t know you needed. Now some will say, “hey, I’ve seen that core shape before” and to those we say, “yes, yes you have.” BUT what we can also say is that you have never seen this MAXED-OUT version of this core shape before known as Rondure™ MaxD. That’s right, our team of mad scientists in the R&D Lab pushed this core shape to its limits by changing the densities of both the block and the slug on bottom to create the highest RG value and highest Differential value this part has ever seen. From its inception, this mild asymmetric shape was created to emulate the motion of a symmetric core shape with a balance hole in it. Fast forward to this newest version, and well, even though previous models were fantastic, this version is without a doubt the longest and most continuous down lane that we have ever seen.

But it doesn’t stop there, the mad scientists in the R&D Lab also managed to formulate a brand-new nano-free coverstock material during this development and testing process as well. That’s right, the versatile response (V-R1) cover formulation was created to handle a wide range of oil conditions and oil types. From the fresh, to the transition, to the burn, this cover provides easy push through the front of the lane while consistently responding to friction down lane without getting out of control.

So, if you are in the market for a pearlized ball that complements your big strong asymmetrical balls, or if you are needing a pearlized ball that allows you to move deeper on the lane and still comes around the corner, then you must add one of these to your bag. But you don’t have to take our word for it. Try it for yourself, we know you will like it. Oh, and don’t worry, it won’t multiply after midnight if there is oil residue left on the coverstock… Or will it?

Color Plum / Raisin / Tanzanite
Coverstock V-R1 Pearl Reactive
Core
RONDURE™ MAXD CORE
RG 2.50
Differential 0.058
Intermediate Diff 0.010
Factory finish Power Edge
Weights 12 thru 16lbs
   

36 Reviews

  • Gremlin

    Posted by Devon Radford on Aug 25th 2025

    The layout on this ball is 4 x 4 3/8 x 2 3/8 (or 50 x 4 x 40 using the dual angle layout). If you were a fan of the Roto Grip Rubicon series, you will really like this ball! It’s a remake of the Rubcion UC2… great length, round shape and continuous through the pins. The Gremlin will be a great late game 1 to game 2 ball in league. The Gremlin can also be used with different surface adjustments to fit anyone’s style of play. The Gremlin is a motion that I was looking for to have in my bag to switch from one of my bigger asymmetrical pearl balls, such as the Attention Star or an Equinox to provide me a nice round shape. I’m so glad to have it this is my arsenal.

  • Gremlin

    Posted by Blake Albers on Aug 17th 2025

    I drilled the new gremlin to give me a smooth yet clean and strong reaction down lane, and that's exactly what it gave me! I stacked the CG and the Mass Bias up the middle of my span. This naturally give me a smooth, delayed reaction with any ball. The Gremlin has the Rondure MaxD core inside the V-R1 Pearl cover. This strong core/cover combo will naturally give you a smooth reaction, but the gremlin is something special! The Gremlin fits the ball 3 spot in my back for a 6 ball arsenal, and i see this ball staying in the bag for a very long time! 10/10 from me!

  • Roto Grip Gremlin

    Posted by Mike LeViner on Aug 16th 2025

    Layout: 45 x 4 3/8 x 35 Ohhh baby - the Rubicon UC2 was one of my favorite Roto Grip balls in quite some time; I even drilled a second one after I wore the first one out. Luckily, the Gremlin is a beefed up second coming of that ball, and not a second too late. Increasing the core differential helps it be even more secure in oil, while the cover still gets it easily down lane before traction sets in. This ball kills medium to medium-dry house patterns. It is still a bit too clean for fresh or heavier shots out of the box, though. The Attention Star is the perfect ball to have a step above this Gremlin, as it is a bit earlier and smoother. All in all, this is a great skid-flip ball for medium oil!

  • Gizmo!!

    Posted by Rich Kollmeyer on Aug 16th 2025

    The Gremlin takes the place of the Optimum Idol Pearl in the Roto Grip HP3 lineup, much like the Rockstar did for the Optimum Idol. While I thought that it was unusual to discontinue the Optimum Idol pair so quickly, I think Roto Grip has actually made improvements that make no sense to have both the Optimum Idol Pearl and the Gremlin in the same lineup. The Gremlin introduces the all new Versatile Response V-R1 Pearl coverstock but brings back and enhanced version of the Rondure core from the Rubicons called the Rondure MaxD Core. Interestingly, they chose not to go with AI on the Gremlin, as AI will lower the RG and increase the differential. The Gremlin’s design intent was to push the RG higher, so AI doesn’t make sense there and USBC’s maximum allowed differential is 0.060, they wouldn’t want to run the risk of producing a ball pushing the maximum differential. The look of the Gremlin and the specs really seem to point to an updated version of the Rubicon UC2 - a great ball that’s deserving of an update. I believe the Rock Star will be an excellent ball to start the night with and then move to the Gremlin as the heads start to get beat up and you need to get further down the lane. The HP3 line has a reputation of having some of the best bang-for-your-buck balls on the market and the Gremlin is no exception Layout: 5 x 4 x 2 My Specs - Speed - 16 mph, Rev Rate - 315. PAP 5 1/8 x 7/8 Up Youtube Link: https://youtu.be/pIw2k302t7I

  • ROTO GRIP GREMLIN

    Posted by Zachary Dwyer on Aug 15th 2025

    Another all around great ball from Roto Grip. You get instant trust out of the box. This ball just gets there and strikes and strikes. You will not be disappointed with this one.

  • Gremlin by RGR

    Posted by Rick Mitchell on Aug 15th 2025

    Roto Grip Gremlin My updated specs: Rev rate 420’s, ball speed 15.3 to 15.8 mph off the hand, axis tilt of 16 degrees and axis rotation of 70 degrees, PAP is 3 15/16th up 3/16th. Tested on Pro-lane surface on a 43ft medium volume house pattern and on HPL on Scorpion and Earl Anthony Ball dynamics: COVERSTOCK: V-R1™ Pearl Reactive CORE: Rondure™ MaxD Core COLOR: Plum / Raisin / Tanzanite FINISH: Power Edge™ CONDITION: Medium to Medium/Heavy FLARE POTENTIAL: High With the updated Rondure core where the densities are changed in the block and puck, the core gives the ball more forgiveness and allows the bowler a little more miss area to work with. The new cover V-R1 adjusted to the fresh and transition well, and being nano “free” the cover provides a consistent reaction shot after shot and game after game. I have drilled 2 with 2 different centers in mind. The first Gremlin is 2 x 6 x 3 and the second one 5 x 4.5 x 3.5. The first one is designed to be controllable front to back and be more stable for me on the Pro Lane equipped center and the second one was drilled and laid out for the center with HPL in mind, more length and little less backend which is needed on that surface. Both Gremlin work well from the first shot in practice all the way through 3-5 games on both house and sport patterns. The Gremlins are allowing me to stay in the ball longer and just make minor adjustments during the matches and tournaments. These 2 are going to be in the main set of balls for me for the foreseeable future. Check with your local pro shop for upcoming Matchmaker demo events and to buy the all new Gremlin and the matching t-shirts and shammy. #SquadRG #3Gshoes #ViseInserts #CoolWick #BowlersSupply #ABCNorthLanes

  • Gremlin Bowling Ball Review

    Posted by Mike Craig on Aug 15th 2025

    My layout on the Gremlin was one of my favorites of 4.5 x 4 x 2-VLS. I left it at box surface as Power Edge on SPI balls has been a plus at the higher friction surfaces, I have been on this summer. I threw it on some PBA conditions namely the Monacelli-40 pattern in a PBA50 regional last month. The GREMLIN is very skid/flippy to me in the box condition which on this pattern was almost a detriment as it would get in behind the headpin and flat ten a lot or move a couple right and watch it big four. When I got it back to my league, it was a big motion in the back end of the lane. I was able to tame it down by throwing it flatter and faster and then I had the world with it. Compared to PHAZE AI, it was sharper down lane and not as early. To me the GREMLIN was a ball down option when the PHAZE AI was starting to straighten out in the back and stopped hitting/hooking. Compared to the IQ AI and the GREMLIN was a lot quicker and stronger. the IQ AI was a good ball to play off the GREMLIN when it was getting too sideways down lane. Plug the GREMLIN in as a big ball but be ready to knock the shine off it even if just slightly. It evens the motion out some and makes it more useable on more conditions.

  • Gremlin

    Posted by Todd B on Aug 13th 2025

    The new Roto Grip Gremlin is the newest piece in the HP3 line. The Gremlin features the Rondure Maxd Core and the V-R1 pearl reactive coverstock finished with Power Edge. At 15 pounds the RG is 2.50 and the differential is .058 with an intermediate differential of .010. I drilled my Gremlin 5x4x2 which puts the pin above my ring finger. For me the Gremlin is a great transition ball when my RockStar is starting up too soon. The Gremlin provides more length than the RockStar but still reads the midlane. However, the backend motion on the Gremlin is much stronger than the RockStar. Some people have said this ball reminds them of the Rubicon UC2. This core is like the Rubicon cores, however the density has been changed in the new core. For me the Gremlin reads the lane sooner than the UC2 and has a more controlled, yet strong backend motion. The UC2 was a more skip flip reaction to me. The Gremlin will be a much more versatile and more user-friendly option than the UC2. I am able to use the Gremlin sooner and longer than other pearl reactives. If you are looking for a ball to go to after your big hooking solid ball, look no further than the Roto Grip Gremlin!

  • Gremlin

    Posted by Devon Radford on Aug 13th 2025

    The layout on this ball is 4 x 4 3/8 x 2 3/8 (or 50 x 4 x 40 using the dual angle layout). If you were a fan of the Roto Grip Rubicon series, you will really like this ball! It’s a remake of the Rubcion UC2… great length, round shape and continuous through the pins. The Gremlin will be a great late game 1 to game 2 ball in league. The Gremlin can also be used with different surface adjustments to fit anyone’s style of play. The Gremlin is a motion that I was looking for to have in my bag to switch from one of my bigger asymmetrical pearl balls, such as the Attention Star or an Equinox to provide me a nice round shape. I’m so glad to have it this is my arsenal. Make sure you get yours!

  • The tantalizing Gremlin!

    Posted by Rick Klimowicz on Aug 12th 2025

    Gremlin • Roto Grip • HP3 Series Coverstock • V-R1 Pearl Reactive Finish • Power Edge Core • Rondure MaxD Core Weight •15 lb. RG •.2.50 Differential • .058 PSA •.010 Layout • 5 x 4 x 2 3/8 Tester PAP • 5” R, 5/8” D Tester Axis Tilt • 11° Tester Rev Rate • 300 Test Pattern • 42' THS (Typical House Shot) • Modified, Kegel Stone Street Roto Grip once again elevates your game, and this time with their masterminded concoction they call the Gremlin! The Gremlin is a potent combination of the Rondure MaxD Core and the responsive V-R1 Pearl Reactive Coverstock, providing the Gremlin with some exciting and powerful results. And because of those results, there is a lot to explore behind the Gremlin, so let's take a closer look at what will make it an excellent addition to your arsenal. The Rondure MaxD core is the power-pumping heart of the Gremlin. Like the other iterations of the Rondure Core, the Rondure MaxD Core exhibits a clean and smooth motion in the mid-lane. However, what sets the Rondure MaxD Core apart is its definitive, crisp motion when the Gremlin comes off the pattern. For an asymmetrical core, the Rondure MaxD core revs briskly a bit later in the midlane, providing more time to store its energy. And if you are a straighter player like me, you will love the striking power the Rondure MaxD Core delivers. Although I would have liked to see Storm's A.I. Core Technology surrounding the Rondure MaxD core to give the Gremlin that extra added edge, the Rondure MaxD Core retained a substantial amount of hitting power and provided my Gremlin with a significant amount of continuation through the pins. So, all in all, the Rondure MaxD core lives up to all the hype Roto Grip gives it! The V-R1 Pearl reactive coverstock is what I would call a bowler-friendly coverstock. The V-R1 Pearl reactive gives the Gremlin a smooth and clean look through the front part of the lane, and allows the Gremlin to find smooth traction in the mid-lane. However, as a straighter player, I need a pearl that bites when it comes off the pattern without being jumpy, and the V-R1 Pearl coverstock gave me the surface flexibility I needed to dial in my Gremlin. The factory Power Edge box surface on the Gremlin went far too long for me on a THS, but when I hit the V-R1 Pearl with a 3000-grit Abralon pad for a THS league night, my Gremlin lit up the lanes. For my straighter low rev game, and the 3000-grit Abralon surface tweak, the V-R1 Pearl performed brilliantly all night in league without suffering from too much surface that leaves those dreaded corner pins. So, I highly recommend tweaking the V-R1 surface to your liking as it will give you the most control over your Gremlin, regardless of your playing style. Lastly, I will tell you that the V-R1 is a bowler-friendly coverstock, and it will deliver results you can rely on. In closing, Roto Grip has delivered another success to their HP3 line with the Gremlin. The Gremlin is a well-balanced combination of Rondure MaxD core and V-R1 Pearl reactive coverstock. Straighter players will love the Gremlins' ability to get dialed in to fit their tighter lines and yet produce that powerful roll and continuation we need to keep us striking. Further, for straighter players, the Gremlin can be both a THS league staple and the step down from those big asymmetric cores and solid coverstock like the RST Hyperdrive. In either case, the Gremlin is a great choice. So stop into your local Storm VIP Pro Shop today and see where the Roto Grip Gremlin fits in your arsenal for the fall season ahead. The Gremlin is well worth the investment! Rick Klimowicz Storm Products Pro Shop Staff Roll the Ball Pro Shop Penndel, PA

  • Gremlin

    Posted by Will on Aug 12th 2025

    Ball Specs: Gremlin Cover: V-R1Pearl Core: Asymmetric Weight block. Review: The new Roto Grip Gremlin, released July 18, 2025, is a high-performance HP3 line ball designed for clean front-lane travel and explosive backend motion. Featuring the asymmetrical Rondure MaxD core with Roto Grip’s highest-ever RG (≈2.50) and differential (≈0.058), wrapped in the V-R1 Pearl Reactive cover, it stores energy with ease and delivers a sharp, angular snap off the breakpoint—ideal for lane transition and medium-to-drier conditions. Comparable to a more aggressive Rubicon UC2, the Gremlin excels late in league or tournament blocks, offering strong continuation and carry even as lanes break down. With a factory Power Edge finish, striking Plum/Raisin/Tanzanite colorway, and versatile surface adjustability, it’s a reliable choice for high-rev and speed-dominant players seeking a “skid-flip” reaction, or for mid-rev bowlers needing a transition ball to open angles without sacrificing control. Will Tefft Roto Grip Pro Shop Staff Member will@parklanes.net www.rotogrip.com #SquadRG

  • Roto Grip Gremlin – WWRD 7/18/2025

    Posted by Patrick Dombrowski (Storm Staff) on Aug 12th 2025

    Cover: V-R1 Pearl Reactive Core: Rondure MaxD RG: 2.50 RG. Diff.: 0.058 Finish: Power Edge Roto Grip’s new Gremlin is a Pearl Asymmetrical piece that is good for Medium-Heavy Volume patterns. PAP is 5 5/16 R 1 3/16 Up. Rev Rate: 400. Speed: 16.5. Drilled this piece with the Pin up between the fingers, CG kicked out 1” from the palm, and 1” Left of the Mass Bias. I threw this piece on a Fresh 43’ House pattern. Out of Box ball motion was clean through the fronts with a half circle shape on the backend. I compared this to Attention Star. Attention Star was similar through the Fronts but has a Sharper motion on the Backend compared to the Gremlin. The Gremlin is a good step-down piece to the Attention Star. This piece will be good for all types of styles. Check Out the Ball motion Video on my Facebook Page: https://www.facebook.com/share/v/16wpRBkFXo/

  • RG Gremlin

    Posted by Brian Watson on Aug 11th 2025

    The newest addition to the RG HP3 Line is the Roto Grip Gremlin. The Gremlin uses a modified Rondure core which was in the UC2 series and Tour Dynamix. With a brand new Pearl Coverstock (V-R1). I drilled mine with a 4.5 x 4 x 4.5 pin down layout. The Gremlin has a high Diff Core with a very clean cover. Which the Gremlin creates an angular motion down lane! Even with the big motor the Gremlin gets down the lane with ease for an asymmetrical pearl and responds to friction pretty quickly. Very good motion from the Gremlin. The Gremlin is a must have ball in a bowler's arsenal its that good. It's a good ball down from the RST Hyper Drive or Storm Equinox. And a ball up from like RG Rock Start or Storm Phaze2. Brian Watson Storm Pro Shop Staff PAP - 4 up 1 1/8 RPM - 400 MPH - 16-17 TILT -17 Brunswick Pro Anvil lanes 42ft house shot 43ft Kegel Sport pattern

  • What are you looking for? This one?

    Posted by Todd Pawlak on Aug 10th 2025

    This ball says it all being an Asymmetrical Pearl! It does have the Power Edge Finish out of the box so I left it that way. This ball reads the lane very well, I could actually move a little right then with the Attention Star. For me this is a very versatile ball. You can swing this ball if you want (15-20 at the arrows) or play up the boards (7-10 at the arrows) And still get a really great look. This might be a great ball to start with, or toss my Rock Star, then after seeing it starting to hook s little early switch to the Gremlin. It seriously rolls really good and its going to be in my bag this coming bowling season!

  • Gremlin

    Posted by Devon Radford on Aug 10th 2025

    The layout that I have on this Gremlin is 50 x 4 x 40, or using the VLS systerm: 4 x 4 3/8 x 2 3/8. If you were a fan of the Roto Grip Rubicon series, you will really like this ball! It’s a remake of the Rubcion UC2... Great length, round shape and continuous through the pins. The Gremlin will be a great late game 1 to game 2 ball in league. This ball can also be used with different surface adjustments to fit anyone’s style of play. The Gremlin is a motion that I was looking for to have in my bag, and now I’m so glad to have it! Make sure you get yours!

  • Great Bowling ball

    Posted by Isaiah Ailstock on Aug 8th 2025

    The Roto Grip Gremlin is Roto Grips newest HP3 line ball. The Gremlin features the Rondure MaxD core wrapped in V-R1 pearl and finished with power edge. The Gremlin reminds me a lot of the Rubicon UC2 from a few years back. The Gremlin is very stable for such a clean piece without sacrificing the ability to get through the friction in the front part of the lane with ease. The Gremlin for me has been the perfect 2 ball in league allowing me to circle the whole lane or trap the pocket based on my hand position. The Gremlin is now available from any Storm VIP Pro shop!

  • Roto Grip Gremlin review by Lonnie Pemberton

    Posted by Lonnie Pemberton on Aug 7th 2025

    Cover:V-R1 Pearl Reactive Core: Rondure MaxD Finish"Power Edge RG: 2.50 (15lb) Differential: 0.058 (15lb) PSA: 0.010 (15lb) ME: Right-Handed Tweener Speed: 12-13 mph Rev Rate: 315 Axis Tilt: 14° Axis Rotation: 74° PAP: 5 1/8 R 7/8 Up LAYOUT: Pin Over Bridge 5 1/4 X 5 3/4 x 2 1/4 VLS Roto Grip has brought back the popular Rondure core with an upgrade in the new Gremlin. The Rondure MaxD features a higher differential than the Rubicon series balls did. They wrapped the new core in the clean V-R1 cover. The cover allows the ball to use all that diff in the back of the lane. The Power-Edge finish allows the ball to grip the lane well. I tested the Gremlin for the first time during league. I was pretty excited about this release as what I've seen of it made it look ideal for use in transition. I took it out game 2 when I started to lose the front of the lane. While it was noticeably cleaner than the ball I started with (Cove) it did still see a bit more of the mid-lane than I was expecting. My first instinct was to move noticeably left and increase my angle through he front of the lane. The ball tipped and little earlier than I was expecting and wasn't as quick in the back-end as I'd anticipated so I moved my feet back to the right, ending up only a couple of boards left of where I had been throwing the cove. I feel that the cover sees a little too much of the front of the lane in our house. As I've mentioned in numerous reviews our front panels hook ALOT. In a house without so much early friction the ball would probably look quicker down-lane but for me it smoothed out a little too much probably due to it using too much energy too soon. As a result this ball has been more of a first ball out for me, and that's where I've had the most success with it. Once I have to cover boards can move from it into a ball like the HyRoad 40 pretty seamlessly, where I had expected them to be balls I would use in a similar spot with just shape differences. This ball should be pretty good for bowlers with less rev-rate as its cleaner cover helps it clean the front but it's strong core give you good motion. I can recommend this ball for other pro shop guys looking to match up with your senior and lady bowlers.

  • Roto Grip Gremlin

    Posted by Dannial Cohen on Aug 5th 2025

    Roto Grip Gremlin Ball Review Layout-5.5x4x2 Surface-Poweredge Polish RG-2.50 Differential-.058 Intermediate Diff-.010 Roto Grip has brought back the Rondure Core which was used in the Rubicon UC2.In the Gremlin they have changed the densities to raise the RG and differential to create more continuation downlane. The Gremlin is a asymmetrical core wrapped with VR1 Pearl Coverstock.The VR1 is a nano free coverstock so it will be clean through the fronts with a strong backend motion downlane.I feel like the Gremlin is a UC2 on steriods. I compared the Gremlin to the Rockstar and Attention Star. The Gremlin compared to the Rockstar was longer with a sharper backend.The Attention Star was earlier than the Gremlin with a more foward motion downlane. The Gremlin will give you a strong backend motion but be a cheaper price point than the high performance balls. This is a great addition to the Roto Grip Family. Modify message

  • Gremlin Review

    Posted by Adam Chase on Aug 1st 2025

    Layout: 5 x 3 1/2 x 2 1/2 Surface: Power Edge Rev Rate: 470 Tilt: 13* The new Gremlin brings back the Rondure core but now Maxed out in its current version. Slightly higher RG and differential gives the ball ample hitting power on medium to heavy oil. The coverstock is the brand-new V-R1 Pearl coverstock which creates versatile ball reaction on a wide array of patterns. The ball reaction of this one reminds me of Storm's root ball reaction of true skid flip motion. This ball gives an impressive amount of angle down lane while still being controlled. I was able to test this on my 44ft typical house shot. On the fresh, the response to friction was actually very high as the backends were clean. The angular motion got to the pocket fairly easily but was not smooth enough to tackle all the front head oil and clean backend. The rockstar here would be a much better option on the fresh. As the lanes transitioned and I needed to move left with my feet, the Gremlin did not stop coming. Very strong and angular backend motion while still getting down the lane with ease. This ball for me definitely loves the left to right motion more then up the lane. The further left, I got on the lane, the better this ball still became. There was no disappointment of backend angle from all areas of the lane. As I got the ball more to the drier part of the lane, I saw ample hook but sometimes over hooked when angles weren't the best. The Gremlin has a good shot to be a good fresh ball with the right layout but certainly shines in transition and carry down. A pin down layout would help smooth the angularity of this ball if that is what is desired. I would recommend this ball more towards bowlers who want to have that angular motion and who enjoy opening the lanes up more. This ball has worked for me on a variety of patterns from medium to long lengths and medium to heavy oil. Compared to the Rubicon UC2, I saw more strength out of the Gremlin but pretty identical backend angle. If you really loved the UC2 and angular ball motion, I definitely recommend this one! Adam Chase Storm Staff

  • Gremlin Review by Kyle, Joel, & Dean Johnson

    Posted by Kyle, Joel, & Dean Johnson on Aug 1st 2025

    Ball Specs: Roto Grip Gremlin Cover: V-R1™ Pearl Reactive – Power Edge Core: Rondure™ MaxD (Asymmetrical) Color: Plum/Raisin/Tanzanite Review: This is a fun release with a great name, color, and new/old tech. Surprisingly this ball does not have A.I. core technology that everyone is loving (Not sure why?... but it does not seem to matter because this ball continues like crazy). This ball is basically a slightly modified version of the UC2. Our style: tweener, 350-375 revs, 16.5mph, layout of choice is 5x4x2 (pin is above bridge). There is not much asymmetry in this core so it is clean and a step down from what you may think at first glance but it is a great piece that fits in between those symmetrical pieces and the bigger engine asyms like an attention start or harsh reality pearl. Because of all of this information it wouldn’t necessarily be a ball we start off with on the fresh. It will be a great ball to transition to because it is so clean and you can really open up the angles once the lanes break down a little bit. Overall we love the look of this piece and it will definitely get some time on the lanes and be a fundamental piece in our bag. Kyle, Joel, & Dean Johnson Roto Grip Pro Shop Staff Members joel@parklanes.net kyle@parklanes.net dean@frontierfuncenter.net www.rotogrip.com #SquadRG

  • Gremlin!

    Posted by Joshua L. Shoemaker on Aug 1st 2025

    The Roto Grip Gremlin is Roto Grips newest HP3 line ball. The Gremlin features the Rondure MaxD core wrapped in V-R1 pearl and finished with power edge. The Gremlin reminds me a lot of the Rubicon UC2 from a few years back. The Gremlin is very stable for such a clean piece without sacrificing the ability to get through the friction in the front part of the lane with ease. The Gremlin for me has been the perfect 2 ball in league allowing me to circle the whole lane or trap the pocket based on my hand position. The Gremlin is now available from any Storm VIP Pro shop! Review Video: https://youtu.be/gYynVBLJJl0?si=-xRRRx9zpwIKQh2w

  • The Gremlin has hatched!

    Posted by Dave Jecko on Aug 1st 2025

    Roto Grip Gremlin - HP3 Coverstock: V-R1 - Power Edge Core: Rondure MaxD RG: 2.50 Differential: .058 PSA: .010 (15 lbs) Layout: 5.25 x 3.5 x 3.75 PAP: 6" Right, 1 3/8" Up Axis Tilt: 16° Rotation: 51° Rev Rate: 450-500 Speed: 17-18 mph Location: Vista Lanes - Yorkville, NY Pattern: Kegel Carbon Lane Surface: HPL The Gremlin has hatched and is ready to strike! It features the brand new V-R1 (Versatile-Response 1st Edition) pearl cover and the Rondure MaxD core. The V-R1 cover was created to push through the fronts and provide a consistent reaction to friction on a wide variety of patterns and oil types. The Rondure MaxD core, first seen in the Rubicon series, has been pushed to the limit to generate the longest and most continuous downlane reaction in the HP3 line. The Gremlin gave me a great look sliding on 30, looking 17 at the arrows with my breakpoint around 7-8. I was able to play multiple angles by changing my speed and hand position, but the Gremlin thrived the further left I moved. It also did an excellent job blending out the wet/dry on the high friction house pattern. When compared to the Rockstar, it was several feet cleaner and much sharper off the end of the pattern. I’ve had great success with HP3 balls from Roto Grip in the past and get a UC2 vibe from the Gremlin. If you are in the market for a pearl asymmetric ball that will compliment your strong solid/hybrid asymmetric balls, the Gremlin will be a must in your bag. Stop by your local Storm VIP pro shop to check it out! Dave Jecko Storm Amateur Staff Member

  • Dee's Reviews

    Posted by DeeRonn Booker on Jul 29th 2025

    The Gremlin is GOOD! I would recommend drilling the ball with a longer pin to pap. Even though the cover on the Gremlin is cleaner, the core still wants to flare. It is best used later in the block or when you need to open your angles. The core is very strong, so one of my recommendations would be to drill the ball a little weaker (Longer pin to pap) to help the ball clear the Midlane when having to move left. I see this ball getting a lot of play and because there isn’t much asymmetry to the ball it fits the gap between balls like: The Optimum Idol, Summits and Sublimes and The Ion Max

  • Gremlin 5x5x3

    Posted by Eric Latimore on Jul 29th 2025

    I went with something extreme for me and this ball did not disappoint. This ball lets me play a little straighter to start but as the transition happens it lets me go left and the ball still has plenty of energy to get back to the pocket. This is going to be a good addition to anyone’s bag.

  • Gremlin Review

    Posted by Thomas Coco on Jul 27th 2025

    The Gremlin is Roto Grip’s newest addition to the HP3 line. This asymmetrical pearl reactive is featured with the Rondure MaxD core, along with the new V-R1 Pearl Cover stock, resulting in a clean, skid/flip motion bowlers would love to have in their bag. In my opinion, this ball would be an upgrade to the UC2, only stronger. Ball layout: 70 x 5 3/8 x 40. I was quite impressed with the ball motion the Gremlin can create. Goes through the front part of the lanes with ease, very clean, strong backend motion with some skid/flip shenanigans. This can be a great transitional ball once friction starts to show on the lanes and bowlers start moving right/left with their target/feet respectively. First ball out of the bag can also be an option if you are attacking a medium/short oil pattern, where the Gremlin can tend to read early enough and control the mid lane roll, saving its energy for backend motion. If I had to define where this ball would fit in my bag, it’d be right in between my big core ball (Hyperdrive), and benchmark ball (Optimum Idol Solid/Rockstar). The Gremlin is one versatile ball you should consider having in your bag. It’s a mischief made to strike!! Be sure to stop by your local pro shop and drill one up today!! Thomas Coco (Storm Staffer)