Roto Grip Rock Star
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 44 ft house
pattern with lower volume used for the junior and senior leagues, a 44 ft house pattern with larger volume,
and patterns that ranged from 33 ft to 39 ft sport patterns.
Color: Crimson/Jet/Maroon
Core: Rocker + A.I. Core Technology
Coverstock: NanoStar Solid Reactive
Finish: 2000-grit Abralon
Layout: 2 x 6 x 1
RG: 2.48 (for 15# ball)
Differential: 0.050 (for 15# ball)
Recommended Lane Condition: Medium to Heavy Oil
The all new Roto Grip Rock Star has been a BEAST on the lanes in league play for me in the past 4
weeks. The motion is very easy to read, not jumpy, humpy, or bumpy. Stronger than my Roto Grip X-Ray
with identical layout, but more length and not as quick to jump off the pattern as my Optimum Idol with a
similar layout of 3x6x1. Similar in overall performance as a Hyped solid on fresh, but as the pattern
breaks down, the Hyped Solid would be put away, the Rock Star stays on the rack for all 3 games. The
only other ball in recent memory like this is the Storm Equinox, where just making small adjustments
allows me to stay in the ball longer and not have to deal with a ball change so quickly. The lowest league
match has been 696 and the highest was 778, my current average is 212. The Rock Star is what I call a
“keeper” where one will be in my league bag and as bigger tournaments are on the horizon, a second
Rock Star will be drilled for tournaments. Current league bag is now as follows - Rock Star, Equinox, and
Attention Star S2. Now only bringing that ONE back to league - because these 3 balls cover everything I need in league play.

Ball Specs: Rockstar
Cover: NanoStar Solid Reactive
Core: Rocker AI
Review:
The Roto Grip Rockstar is a reliable benchmark ball designed for medium oil conditions, offering a smooth yet strong reaction with its Rocker + A.I. Core and NanoStar Solid Reactive Coverstock at a 2000-grit Abralon finish. It provides a controlled mid-lane read with a steady, arcing backend motion, making it a versatile option for various playing styles. Compared to sharper-reacting balls like the Storm Phaze II, the Rockstar delivers a more predictable, rounded motion, making it ideal for handling lane transitions. Bowlers praise its consistency and dependability, making it a great go-to option for those seeking control without sacrificing power. Whether for league or tournament play, the Rockstar is a solid addition to any arsenal.
Will Tefft
Roto Grip Pro Shop Staff Member
will@parklanes.net
www.rotogrip.com
#SquadRG

The layout on my Rockstar is 55 x 4 1/4 x 20.

The Roto Grip Rockstar is a great additional benchmark for medium oil patterns. I know that this will be one of the first out of my bag that I can go to show to provide me versatility and predictability on fresh oil conditions.  This is a step down from the Optimum Idol. While the Optimum Idol was a earlier and smoother, the new Nanostar coverstock on the Rockstar provides more downlane motion, and the Rocker core provides more great continuation through the pin deck. This ball allows me to play multiple angles, such as playing a more direct line to the pocket, or create shape from right to left. This ball definitely goes with me everywhere and is actually fun for me to roll!

Devon R.
Storm Staff Member

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.

Roto Grip Rockstar Ball Review by PJ Haggerty

The Rockstar from Roto Grip is the newest addition to the HP3 line and it’s very, very good.  I recently competed in the World Series of Bowling in Reno and I was able to use this ball on each pattern with varying lengths between 38’ to 47’.   Our masterminds in Utah developed a new NanoStar Coverstock along with a new ROCKER core.  There’s A.I. core technology that now gives players an extremely smooth but continuous shape that most players strive for.

I’ve drilled two so far and really like both.  They both have very similar layouts (5.5 x 4.5 x 1).  The CG is just under my ring finger but the pin is “tall” above my ring finger.  The biggest difference between the two layouts is the surface.  I shined one with the Storm Power Edge polish and hit the other one with a 1000 pad.  They compliment each other super well and I know these can be successful on a multitude of patterns.

The Rockstar is a perfect ball to use after the IonMax and Origin do their job, but before you’ll need to get into a Road Warrior or HyperDrive.  This ball will be in my league and tournament bag for the foreseeable future and I’m excited to have the opportunity to use it!

Go drill one!

LANE CONDITION

Length: 43'
Volume:Medium/Heavy
Type: THS


COMMENTS
Layout: 3 3/4 x 4 3/4 x 2

Website:
The Roto Grip Rockstar is a recent addition to Roto Grip's HP3 line, designed to offer bowlers a versatile option on medium to heavy oil conditions. It features the new NanoStar™ Solid Reactive coverstock and the ROCKER™ Core, both engineered to provide a unique ball motion and reaction.​

Coverstock and Core:

The NanoStar™ Solid Reactive coverstock is a new formulation that bridges the gap between Roto Grip's MicroTrax™ and eTrax™ materials. This coverstock offers strong midlane traction similar to MicroTrax™ but with increased responsiveness to friction downlane, providing a smoother and more controlled backend reaction. The ROCKER™ Core, enhanced with A.I. Core technology, is designed to centralize the rotation plane, promoting better continuation through the pin deck. ​

My Take:
Wow! holy flare and control RotoMan!

Playing the track 14 -10 - 6 board. My comfort zone.

Drilled mine stronger than my Subline Focus and Optimum Idol (4 1/2" pin to pap) which have a more forward pronounced roll. This ball has a more defined motion for me in box finish. I may have to take cover  up to 3000/4000 abralon for my lower revrate to get a full 3 games.

I tested it against my Axiom Solid and they have similar motion up to the midline, but I feel the A.I. tech gives it an edge going to the breakpoint and pin deck. The Nano cover in my opinion is just as strong an NEX solid. I did try to open up my angles, but it was better playing tighter for me.

Great game one on the fresh THS choice. Depending on your speed and lane typography/transition you may get 3 full games with the OOB cover. Still smooth and predictable with that midlane control. I suggest altering the cover for a wider range of use.

Performance:
Overall I give this an 8.5 for now. Hopefully this will be my Idol replacement for in my bag for a long time.
The Roto Grip Rockstar is a solid benchmark ball that offers control and predictability on medium to heavy oil conditions. All styles welcome!


https://youtu.be/AFL8Gcf-uVo
#SquadRG