Roto Grip Rock Star Bowling Ball

Roto Grip Rock Star Coverstock: 2000 Grit NanoStar™ Solid Reactive Weight Block: Rocker™ A.I. Core (Symmetrical) Color: Crimson/Jet/Maroon Review: So glad the HP3 line is getting a new core and cover. We expected this ball to be smooth and have some similar characteristics to the Optimum Idol. Our style: tweener, 350-375 revs, 16.5mph, layout of choice is 4x4x2 (pin is above bridge). This ball is incredibly clean, way cleaner than we expected, and likes oil in the fronts. This is typically not a ball that would be first out of bag for us and is probably better characterized as a specialty piece, or maybe a ball that is better suited for tougher patterns where you have to kind of jam it up the right side and keep your angles straighter. If you do like to swing it you may need to add some surface to get it to read a little earlier. For us this ball would look better on fresh or a house pattern if we brought the surface to 1500 or 1000 to try and get rid of that cleanliness through the fronts. Overall this ball Rocks if you need that piece that goes straighter in blocks or if you find yourself struggling to find a ball that is very clean and very smooth. Kyle, Joel, & Dean Johnson Roto Grip Pro Shop Staffers joel@parklanes.net kyle@parklanes.net dean@frontierfuncenter.net www.RotoGrip.com #SquadRG

The new ball in RG HP3 line is the Roto Grip Rock Star. With all new NanoStar™ coverstock material is our latest nanotechnology remix and with the new Rocker core and A.I. Core technology. My feeling the intent from Storm HQ was to develop a benchmark ball in the RG line, similar to say a Storm Phaze 2. I drilled mine 4.75x4x1.75 pin up. Man all I can say is this ball just strikes. The cover is a little on early side like a phaze 2 but it has very good response down lane. Its a very strong arc motion, and just goes through the pins amazing. I was fortunate to shoot 300-804 off the press with the Rock Star on a 46ft modified house pattern. I played up the lane around the track area. If I leaked it to the dry it just stood up and rolled a little forward and still went through the pins. If I missed in a little in the puddle it was still strong enough to respond down lane. I keep the surface around 2000 abralon. Very good bench mark ball. Its stronger than overall than the IDOL line to me but it different parts of the lane. It has more pop off the friction down lane than the IDOL. Not quite as strong as the bigger asyms like Attention Star S2 or ION Max. But stronger than Summit Ascent or the ION PRO. Great Ball period and a must for everyone's arsenal. Brian Watson Storm Pro Shop Staff PAP - 4 1/8 up 1 1/8 RPM - 400 MPH - 16 TILT - 17 Brunswick Pro Anvilane 46ft House 43 House 45 Ft Kegel Sport patterns

Mine is Pin down, in my ring finger, out of the box, 759 with a 289 (10 pin) yeah, I love how this ball rolls. AND YES...you can watch this ball roll and read the lane like no other. I had no skid flip with this ball, its nice and smooth, and like I said really easy to read and really easy to move off of. Is there anything better? I keep it at box finish and very excited to throw it. I can't wait to try it on some sport patterns. It's just an easy ball to throw and a ball to read. It's a heavy/medium oil ball that rolls. The new Rock Star is amazing!!! I love it!

With Roto Grip’s discontinuing the Optimum Idol from the HP3 line, we were left wondering what the replacement would be. Look no farther than the ROCK STAR! The Rock Star features the all new Rocker AI Core and NanoStar Solid cover. I decided to drill mine 4.5 x 4 and after throwing this ball for awhile and watching others throw it, I know this is going to be a huge hit. It has the similar overall strength as the Optimum Idol and Phase 2 but has a little more shape down lane than those balls. The Optimum Idol is my favorite ball in my bag and goes with me to every tournament and I find that the Rock Star is the perfect ball down for me from it and is more of a benchmark ball in the line. If you are looking a benchmark ball with a little more shape down lane than a Phaze 2 or just a replacement for the Optimum Idol, pick up the Rock Star today and get your rock on !

I picked up the Roto Grip Rockstar in 14 pounds, and it’s been great on medium to heavy oil. The Rocker Core (RG 2.50, Diff 0.046) and NanoStar Solid cover at 2000-grit give it a smooth, steady roll. It moves cleanly through the fronts, picks up in the midlane, and arcs into the pocket without any sudden jumps—just predictable control. The crimson/jet/maroon color scheme looks great, nothing too wild. On our house shot, it handles oil well and doesn’t overreact on drier spots. I’m a mid-rev bowler (around 325 RPMs), and it fits me perfectly. Swinging it wide, it comes back fine, though it’s not a sharp backend ball. That’s more my preference anyway—less aggressive than some big-hook options. It reminds me of my Optimum Idol, but it’s cleaner and doesn’t grab as early.

Rockstar Ball Review Layout-VLS 5x4x2.5 Surface-2000 Grit RG-2.48 Diff-.050 Symmetrical Core Roto Grip Rockstar features and new core called Rocker with AI Technology wrapped with the new Nanostar Solid Reactive Coverstock.The Rocker core is a low rg symmetrical weight block which produces a very continuous but predictable ball motion. The new Nanostar coverstock will fall between Microtrax and E-Trax base coverstocks.The Rocker is a very versatile ball which will allow you to play straighter or move left and create more angle. The Rockstar will fall in the strong benchmark category. I compared the Rockstar to the Optimum Idol Solid,X-Cell and Attention Star S2.The Rockstar compared to the Optimum Idol Solid will be cleaner with a sharper move on the backend. I feel like the Rockstar will be fall below the Attention Star series and X-Cell and above the Idol series balls. The Rockstar is available Feb 21st!!!!!!!!!!!! Attached below is my Youtube Ball Video https://youtu.be/10kJpsT0BJc?si=o16LhL4zk5dM48KX

I’ve been looking for a symmetrical medium to strong ball from SPI that would be more versatile than the Optimum Idol. I believe I’ve found it in the new Roto Grip Rockstar. The Rockstar features a brand new coverstock called NanoStar that has the nano particles found in Roto Grip balls. The particles always help with traction to bite into the oil pattern. The new NanoStar cover fits between the MicroTrax (on Optimum and RST-X1) and eTrax (Attention Star, S2, X-Cell and RST-X2) covers. As a result, it’s a little cleaner through the front than the Optimum Idol and more versatile depending on whether you shine the Rockstar or hit it with some surface. The Rockstar also features a brand new AI core called the Rocker which is a strong symmetrical core that provides more continuation through the pin deck. Bottom line, this is a great ball that can fit many spots in your bag from the strong side to the clean side of the middle of your bag and everywhere in between. I drilled mine pin up, 4 ½ from my PAP.

The Rockstar is Roto Grips newest HP3 ball. The Rockstar has big shoes to fill with the recently discontinued Optimum Idol. The Rockstar features Nano Star solid wrapped around the Rocker AI core. The Rockstar is slightly cleaner and quicker than the Optimum Idol. The Rockstar for me is fairly close to the Storm Phaze 2. The Rockstar is now available for purchase from any Storm VIP Pro Shop! Review Video: https://youtu.be/xCuLukxo9UQ?si=jUzdDNBYPapCdze6

TESTING ENVIRONMENT Length:42 Type (THS, Sport Pattern etc): House Shot BALL: Roto Grip Rockstar Coverstock: NANO Star Solid Core: : Rocker A.I. Core Finish: 2000 Grit RG: 2.50 (14 Pounds) Differential: 0.046 (14 Pounds) MB/PSA: NA (14 Pounds) ME: Right-Handed Tweener Speed: 13-14 mph Rev Rate: 210 PAP: 5 1/2 right 1/4 up Ball Layout: 4.5x3x2 This might make anyone drop the mic! I want to first mention that the Rockstar and the Attention Star are not in the same line even though they share the “STAR” name. I have been struggling at one of our centers with the cliff that forms just after practice. It really tamed the over/under or cliff that I have had a hard time with. This ball makes you look like a Rockstar with the right amount of everything that has been done with this ball. As a ball from the HP3 line with surface to me it picks up much quicker than other balls you would think of like the Idols which were much slower. Over the past couple of weeks this ball has really shined and has made my bag that goes everywhere. This ball has a WWRD 2/21/25 Thanks for reading & watching and if you like this or any of the jerseys in my videos just head over to www.IAmBowling.com and use HIRSCH at checkout for 20% off. This ball is available today at Top Notch Pro Shop inside Castle Lanes in Racine, WI or your local STORM VIP Pro Shop #Storm #SquadRG #GoGlobal #Turbo #DrivenToBowl #TopNotchProShop #3GShoes #stormbowling #iambowling #sheridanlanes #Castlelanes #900global #MasenHirschBowling #teamshimmy #USBC #kenoshaYouthBowling #MatchMakerLive

TESTING ENVIRONMENT: Length:43 Volume: Med-High Type (THS, Sport Pattern etc):THS COMMENTS Core Rocker + A.I. Core Technology Coverstock NanoStar Solid Finish 2000 RG 2.48 (15) Differential 0.050 (15) 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 Ball Layout: Pin Under Ring 4 1/8 Pin To Pap 3 3/4 Pin Buffer There’s a new ball available in the HP3 line from Roto Grip. A new core and cover combo that gives this line what it’s been missing while keeping what it’s done right. The nano star cover continues the ultra reliable mid-lane read that was exemplified by the idol line but along with the new Rocker core adds down-lane motion and continuation. The result is a ball that will see the right part of the lane, the right way, on a variety of conditions. I tested the Rock Star for the first time in league on our fresh house condition. I was relieved to see the familiar roll that I rely on the combat the length of our house pattern and was a little shocked at how much the ball hooked off the spot. Too often I’m sacrificing one for the other so my speed and angles have to be more precise. I made an adjustment right and picked the speed up to keep it right of the head pin. I was slower than I like to admit figuring out that I didn’t have to try to stay as far right as I was. I paid the penalty a couple times for relaxing the ball speed. When the transition forced me left anyway I realized this ball was going the continue much better than I expected and I could have made the move left sooner. By the end of game three I stopped looking for the time when I needed to get out of the ball and into something shinier. I really didn’t even have to trick it any more than I do the stronger pearls in that part of the lane, this ball just keeps coming down-lane. I came back a couple days later to shoot a reaction video and picked up right where I had left off in league. I caught the lane after a league had bowled and put a couple more games on it while recording shots. Didn’t have to loft the front of the lane like I sometimes do, or try to muscle it right to get the speed up. It was one of the quickest vids I’ve ever shot. This ball is gonna be a hot seller for the pro shops, it’s got that easy to match up to motion that you get from Zens and phase IIs. See my full video review at: https://youtu.be/qe6PxvdcUuU?si=JFjDlfI42m3pEad0 Lonnie Pemberton Storm Pro Shop Staff Vise Pro Shop Staff Revolutions Pro Shop Youtube Channel: https://youtube.com/@Revstormaz

I drilled the new Roto Grip Rock 5x4x2 to give me a nice smooth motion. This ball is a new core/cover combo with nanoStar solid wrapped around the new Rocker A.I. Core. This ball fits in the optimum idol category as far as reaction goes. This ball will give you a nice early motion but still retain enough energy to continue through the pins. I plan on this ball being the 2nd ball out of my bag in tournaments to combat those heavy volume patterns. For leagues, I'd recommend hitting this ball with a 3000, 4000 or even polish to keep the ball from burning up too early. This ball works great for me! I highly recommend!

Introducing Roto Grips newest addition to the HP3 line, the Rock Star! This ball is featured with a brand new symmetrical Rocker core and Nanostar solid coverstock to bring more control, more versatility, and more continuation through the pins. Low RG, high differential provides this new benchmark ball to give more strength on a variety of patterns from medium to heavy conditions. Layout: 70 x 5 3/8 x 40, 2000 abralon surface. I tested the Rockstar at my home center at Cortlandt Lanes in Cortlandt Manor, NY. Bowling on a fresh 43ft league pattern, the Rock Star didn’t disappoint. I saw similar ball motion in comparison to both my Optimum Idol and Summit Ascent (both drilled with the same layout as the Rock Star). The ball motion gave more length, stronger mid lane read, and real smooth down lane. If I had to put these three symmetrical solid balls in order, I would have the Optimum Idol first, Rockstar second, and Summit Ascent third. The Idol is a little bit stronger downlane, as it can clear a few extra boards on the fresh. Proceeding to the transition, the Rock Star can then create more shape, more control and more backend across the boards. The Summit Ascent was a little smoother but weaker with the downlane motion. I would recommend the Rock Star as an upgrade to the Optimum Idol in the HP3 line. The Rock Star would benefit those bowling on medium-heavy lane conditions pending surface adjustments. Be sure to stop by your local pro shop today and drill one up. Party like a Rock Star! Thomas Coco Storm Staffer

Roto Grip Rockstar Pattern: 41 Ft house shot Layout: 55 x 4 x 35 Surface: Box (2000 grit) The new Roto Grip Rockstar is a great symmetrical piece to add to the bag. The Rockstar features the new Rocker weight block combined with the signature A.I. core which allows players the option to play up the boards or swing the lane based on how they have it drilled. The new NanoStar Cover allows this ball to fit right in between the previous MicroTrax and ETrax covers by not being too early or too responsive. The versatility of this ball is unique for sure. When throwing it on the 41 ft house shot, I was able to play straighter up the boards and open up the lane when needed. The recovery on this ball allows it to be very forgiving as well. Overall, bowlers of all styles should be able to add the Rockstar to the bag and score with it. Trevor Kopas Storm Staff Ambassador Pro Shop Operator #Bigboybowling

Rockstar • Roto Grip • HP 3 Series Coverstock • NanoStar Solid • Finish 2000-grit Abralon Core • Rocker + A.I. Core Technology Weight • 15 lbs. RG • 2.48 Differential • .050 Layout • 4 5/8 x 3 5/8 x 2 3/4 Tester PAP • 5” R, 5/8” D Tester Axis Tilt • 9° Testers Rev Rate • 250 Test Pattern • 42' THS (Typical House Shot) • Modified, Kegel Stone Street Roto Grip's all-new designed Rockstar brings a fresh look to "oiled" lanes for straighter players like me. With the unique design of the NanoStar Solid Reactive coverstock combined with the Rocker + A.I. Core, the Rockstar was built for medium to heavy oil conditions, and with its design, Roto Grip has a #1 hit on its hands. So, let's take a closer look at what makes the Rockstar so good for a straighter player like me! Let's look at the newly designed Rocker + A.I. Core in two parts: the Rocker Core and the added A.I. Core technology. I found the Rocker has a smooth motion in the mid-lane. I like how the weight block on the bottom brings a crisp and decisive turn when the Rockstar finds friction—further, being a straighter player, I liked how the Rocker Core is smooth and predictable in its motion. When you add the A.I. Core technology around the Rocker, you get an explosive, strong-rolling core that delivers pin-crushing results for straighter players like me. I like the potent impact the Rockstar had at the pins, and the continuation kicked out those single pins straighter players tend to leave because of our lack of rev rate. So, overall, I found the Rocker + A.I. Core delivered! Simply saying that the NanoStar Solid Reactive coverstock loves oil would not do its results justice. The NanoStar Solid Reactive cover has a strong bite as it cuts through the front part of the lane. Yet, when the Rockstar finds the pines or the middle of the lane, the NanoStar Solid coverstock was silky smooth and provided a predictable transition from the hook to the roll phase. Although the NanoStar Solid is designed like a snow tire in winter, I found the NanoStar Solid to blend from the wet to the dry part of the lane without being over-sensitive to friction. I like how it provided a stable, continuous motion I could count on. However, the one caveat I would like to add for straighter players is that the Rockstar needs to be in oil or along the shim line to see its best results. Otherwise, with my low rev rate on worn conditions, the Rockstar tended to roll out or run out of gas, not because of its design but because of my more down and in-bowling style. So, I suggest adjusting the Rockstar's surface to fit your game and the conditions you want to use it in, as I found the Rockstar adapts well to surface changes. In closing, Roto Grip has done a great job designing the all-new Rockstar! The combination of NanoStar Solid reactive coverstock and the Rocker +A.I. Core makes the Rockstar a great new addition to any straighter players' arsenal looking for that medium to heavy oil ball. So, stop into your local Storm VIP Pro shop today and have your Rockstar ready to roll because the Rockstar will keep your game rockin'! Rick Klimowicz Storm Products Pro Shop Staff Roll the Ball Pro Shop Penndel, PA

Videos: Rock Star vs Equinox: https://www.youtube.com/shorts/vrc2OOtHcyU Rock Star 300: https://www.youtube.com/shorts/ywWEMy6nwbY What We Like: Equinox: https://www.youtube.com/shorts/ywWEMy6nwbY Rock Star: https://www.youtube.com/shorts/DURhoRMJJNM Reviews: Rock Star: Controllable and predictability are the main features of the Rock Star. Cleaner than an Optimum Idol yet smoother than a Phaze 2 this ball fits perfectly between these 2 popular releases. If you like to play your angles closed and closer to the right (for righties) this ball will be a great option to have. I mainly will be using this for sport conditions of shorter to medium ranges; however, I found success (including 300) with this on house conditions that play tighter and have more oil. This ball will take well to surface adjustments as well, if you need it to pick up sooner or later. Its versatility will allow adaptability to what the lane conditions are providing you. These benchmark type of balls are a must have for the competitive bowler. Equinox: This is close to a VEBO replacement although a tad smoother. If you like clean and angular motions the Equinox will be a great ball to have. Marketed as designed for most house conditions this ball will be able to be utilized on fresh and transition. I scuffed mine to 3000 to smooth out the backend and make it more usable on the fresh without being too angular. I have found for those conditions where the lanes hook early and play tighter on the backend this ball is a great option to go to as it will clear the front yet be strong enough in the mid's to allow it to give you continuation through the pins.

The Rockstar features the NanoStar Solid Reactive cover, Rocker + A.I. Core, and comes at 2000-grit surface. This is the newest Roto Grip ball and features a new cover and core. The cover is supposed to be a bit cleaner than your normal nano cover. This ball is going to be your typical symmetrical solid benchmark ball. This ball is going to be in the range of the Phaze 2 but not as quick down the lane as a Phaze 2. The Rockstar seems like it is more round shape down lane than what I see out of a Phaze 2. I have thrown this ball quite a bit since I drilled it, and it is good. I usually do not like symmetrical solids but this one shapes really good for me. This ball is a home run from Roto Grip. Ball review link: https://www.youtube.com/watch?v=GA17ty2jT9E&t=453s Tobias Myers #RotoGrip #SquadRG

Layout: 4 1/2" x 5" x 2 1/2" Surface: 2000 Abralon Rev Rate: 475 rpm Rotation: 60* Tilt: 13* The new Roto Grip Rockstar brings an all-new core and coverstock to create this new controllable benchmark shape reaction. The new Rocker core provides a low RG with a moderately high Differential. Compared to some of the more recent, SPI releases, the Rockstar has slightly less differential for a solid cover bowling ball. The new Nano-Star solid coverstock gives medium strength and a very controllable motion desired on more medium type lane conditions. The controllable motion gives vibes of that benchmark type shape. It is very easy to read this ball's motion when it comes to bowling on a variety of lane conditions. I was able to test this on my 44ft Typical House Pattern. When I tried the Rockstar on the fresh, I can tell immediately that it wasn't the strongest ball in the Lineup. The Nano-Star coverstock falls in the middle of overall strength between the E-Trax and Mictrotrax coverstocks. The shape of this ball was pretty much as described. Easy length, stronger midlane read and very smooth down lane. Compared to an Optimum Idol Solid, the Rockstar cleared the front much easier and was overall weaker by about 4-5 boards. The Rockstar was not quite strong enough for my style to use as well on the fresh. It was decently strong in the midlane but on 44ft, it had some trouble slowing down as much to go through the pins. For me the ideal conditions of this ball would be closer to 40ft and less. It would give that control needed for the shorter oil length. On my house pattern, this would be more of a game 2 ball for me if I still needed to control the lane. An Optimum Idol Solid would be a much better option for me in game 1. I would recommend this ball for bowlers who want a new ball on the fresh where the pattern length is medium length and shorter or who have low oil volume who want backend control. I think on heavy volume, this ball would have trouble unless you tend to use a lot more surface on it. I believe straighter angles are the way to go with this ball so bowlers who like to be closer to the friction who are more down and in will enjoy this ball most often. Adam Chase Storm Staff

Cover: NanoStar Solid Reactive Core: Rocker + A.I. RG: 2.48 RG. Diff.: 0.050 Finish: 2000-Grit Abralon Roto Grip’s new Rockstar is a Solid Symmetrical 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 and CG kicked out 1” from the palm. I threw this piece on a Fresh 43’ house pattern. Out of Box ball motion started in the mids with a smooth backend reaction through the pins. I compared this to the X-Cell. X-Cell was 2-2 Left of the Rockstar. Rockstar went a few feet further through the mids compared to the X-Cell. This piece fits between the X-Cell and the Optimum Idol. This piece will be good for all types of styles. Check Out the Ball motion Video on my YouTube Page: https://youtube.com/shorts/PIYDG6lDjwg?feature=share

Roto Grip Rockstar - HP3 Coverstock: NanoStar Solid - 2000 Abralon Core: Rocker A.I. RG: 2.48 Differential: .050 (15 lbs) Layout: 5.25 x 5 x 3 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 Let’s get ready to ROCK! The Rockstar utilizes the new NanoStar solid cover and Rocker symmetric core with A.I. technology. The Rockstar will provide a smooth reaction for both league and tournament bowlers on medium to heavy conditions. This benchmark ball will help you make the best decisions and it can be easily sanded/shined to create the best reaction possible. The Rockstar gave me a great look sliding on 25, looking 15 at the arrows with my breakpoint around 7-8. I was able to play multiple angles by changing my speed and hand position. It also did an excellent job blending out the wet/dry on our high friction house pattern. When compared to the Optimum Idol Pearl, it was earlier and rounder with more overall hook. The Rockstar feels very similar to the Optimum Idol, but a touch cleaner with more continuation. It will be one of the first balls out of my bag no matter what condition I’m bowing on. I’ve had great success with solid HP3 balls from Roto Grip in the past and can’t wait to put the Rockstar to the test in league and tournaments. The Rockstar will fit below the Xcell and above the Optimum Idol Pearl. Stop by your local Storm VIP pro shop to check it out! Available on February 21. Dave Jecko Storm Amateur Staff Member YouTube Channel: https://www.youtube.com/@maximumpotentialbowlerssho7625

The Roto Grip Rockstar is the kind of ball that gives you confidence the moment you roll it. It has a clean look through the front, a strong mid-lane read, and a controlled but decisive backend motion that makes it easy to trust shot after shot. The Rockstar + A.I. Core helps it rev up quickly without being too jumpy, while the NanoStar Solid Reactive Coverstock gives it just the right amount of length and traction on medium/long oil patterns. I love how versatile this ball is—it’s great as a go-to option when the lanes start transitioning, letting me stay in the pocket without drastic moves. It’s not overly aggressive, but it still has enough pop to finish strong at the pins, making it a great benchmark ball for league and tournament play. If you’re looking for something reliable with a smooth, controlled shape, the Rockstar is a great addition to any arsenal. Go to your local SPI proshop and get yours on 2/21!

Dual Angle Layout: 60 x 4 ½ x 30 Storm Vector Layout: 4 ½ x 4 7/8 x 1 7/8 The Roto Grip Rock Star features the Nano Star Solid reactive cover stock wrapped around the Rocker+ AI Core. This ball is a hook monster. It comes out of the box at 2000 grit Abralon which was too much for me on a typical house shot. I took the surface up to 3000 on a spinner and this ball really shined. The surface change gave the ball the length I needed to get through the heads and when this ball hit the pocket it sounded like an explosion, this ball hits like a truck. Another great ball from the Roto Grip line of products.