Roto Grip RockStar Bowling Ball

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

Orientation: Right Handed Rev Rate: 400 RPM Speed: 16-17 MPH PAP: 4 ½ over and 1 1/8 up Location: Enterprise Park Lanes, Springfield MO Pattern: High Volume THS VLS Layout: Layout 1: 4 5/8 x 4 x 2 ½ (Pin above bridge) Layout 2: 4 ¼ x 4 x 4 (pin below bridge) The Rockstar is a new symmetrical solid HP3 Roto Grip ball. WOW! This ball is a lot easier through the heads than I thought it would be, but it still picks up pretty early! Compared to the Optimum Idol, the Rockstar doesn’t try to change directions as much off the friction and is a little slower, but still continuous. Overall I have the Rockstar pretty similar to the Optimum Idol, just a little cleaner/slower. I will throw the Rockstar a lot. It’s very usable and is a little cleaner than some of the recent releases.

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.

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 !