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Author Topic: Idol Cosmos  (Read 6186 times)


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Idol Cosmos
« on: July 15, 2022, 05:02:17 PM »
The success of the Roto Grip Idol line of upper-mid performance bowling balls continues with the Idol Cosmos. This pearlized version of the XtremeTrax coverstock combined with the Ikon Core provides a cleaner option through the front part of the lane and then generates more motion and backend reaction on medium to heavy oil conditions.

Color: Stardust Teal
All colors do vary somewhat from the picture shown
Core: Ikon Symmetrical (14#-16#)
Coverstock: XtremeTrax Pearl Reactive
Finish: 4000-grit Abralon
RG: 2.49 (for 15# ball)
Differential: 0.052 (for 15# ball)
Recommended Lane Condition: Medium Oil - Medium/Heavy Oil
Hook Potential: Medium to High
Length: Long



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Re: Idol Cosmos
« Reply #16 on: August 22, 2022, 09:02:03 PM »
Roto Grip Idol Cosmos
Layout: 45 x 4 ½ x 45

The Idol Cosmos, despite it having a pearl coverstock, has become my current benchmark ball. With the stronger composition of the cover, and the 4k-fast finishing process, this ball is in a different universe of ball reaction than that of the previous Idol Pearl.  The Cosmos has enough midlane traction to handle medium-heavy oil patterns, though it is also clean enough to be used on medium to medium-dry conditions. I would categorize the ball reaction as being smooth but with some backend kick. It is one of the most versatile pieces that I have seen in quite some time.

Mike LeViner


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Re: Idol Cosmos
« Reply #17 on: August 25, 2022, 08:14:33 PM »
Roto Grip outdid itself once again with the newest addition to the Idol series. The Idol Cosmos, for me, is a great one-two punch to the Idol Helios. Since the Cosmos is a pearl cover, it will save more energy for the back part of the lane. The Helios is a little earlier, so when I have to move left, then switching to the Cosmos becomes valuable. I have the Cosmos drilled pin over my bridge with the CG kicked 1' to the right. Very pleased with this ball, it gives me a nice, predictable motion.
Trent Knoop
Storm Staff
Level 1 Bowling Coach


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Roto Grip Idol Cosmos by Casey Murphy
« Reply #18 on: August 27, 2022, 01:22:44 PM »
Orientation:  Right Handed
Rev Rate:  400 RPM
Speed:  16-17 MPH
PAP:  4 ½ over and ½ up

Location:  Enterprise Park Lanes, Springfield MO
Pattern:  High Volume THS
VLS Layout: 
Layout 2:  4 ½ x 4 x 4 1/8 (pin below bridge)

The Idol Cosmos is an updated version of the Idol Pearl.  It’s got more additive in the cover and rolls earlier while maintaining the shape on the backend.   The Idol Pearl got a little “squirty” in oil and the Idol Cosmos solves this issue with the stronger cover.  It never wants to miss the midlane so I feel I can use it earlier in a block.  This one is simple, if you like the Idols, this is another great one!


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Re: Idol Cosmos
« Reply #19 on: August 28, 2022, 09:33:13 PM »
The Idol Cosmos is the newest edition to the Idol line. It features the same core as all the previous Idol balls but is now wrapped in XtremeTrax pearl. For anyone that loved how the Idol pearl shaped but wished it has a little more teeth in oil or for someone that loved the OG but didn’t like how it shaped from farther left, look no further. The Idol Cosmos showcases the best of both worlds by providing enough control for the fresh but enough shape to allow you to open up a lane before going to quicker response balls. The Idol Cosmos for me will be fantastic on fresh house shots or a great three ball during a longer tournament block.


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Re: Idol Cosmos
« Reply #20 on: August 29, 2022, 09:04:02 AM »
Ball Review Idol Cosmos, RG: 2.49 Dif: .052 Cover: ExtremeTrax Pearl 4K Finish
PAP 5 1/8 over ¾ UP, Medium/Ball Speed Rev Rate 275-325 Layout: 4 x 4 x 1 ¾

The return of a Pearl addition to the Idol lineup and definitely a nice surprise. The Cosmos is a great addition to the pearl line up. It has the performance that bowlers expect from the idol line. It’s smooth and rounded shape is very predictable. It has a strong backend motion with good continuation from the pins. The Cosmos with the ExtremeTrax Pear cover at 4k finish responds hard off the friction but doesn’t seem to overreact. The Cosmos picks up down lane and holds its energy well. The Cosmos will fit most play styles and conditions. I definitely recommend this ball if you are looking for a new smooth ball with a strong backend pearl.


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Re: Idol Cosmos
« Reply #21 on: August 30, 2022, 08:45:44 AM »
Drilled this ball with the pin over the bridge with measurements of 4 3/8 by 43. Pretty similar to how I have drilled previous pearl balls (Zen to be specific) looking to get a slightly different motion and that's exactly what I got. The pearl coverstock has a little surface to it so it doesn't have a quick motion off the dry, but instead it's very controllable, very round, while not sacrificing continuation. Took this ball out right after drilling for a couple games on THS and was able to play a couple different parts of the lane. Was able to keep my angles in front of me with a little extra ball speed, and move left and circle it through the oil with a very smooth backend motion. If you are looking for an extreme hockey stick, this is not the ball for you, but if you want a controllable and versatile pearl ball, this will be a great add to the bag.
Brent Ritchie
SPI Staff Member


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Re: Idol Cosmos
« Reply #22 on: August 30, 2022, 03:28:27 PM »
Idol Cosmos – I have not previously been a fan of the Idol balls, but this one is awesome! It’s nice and clean through the front of the lane, but it doesn’t over hook on the back part of the lane. I have used it as my benchmark ball since I drilled it, and I have used it on many different conditions. It is very versatile, which is a big thing I look for in a new ball. I recommend getting one for your bag for sure!


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Re: Idol Cosmos
« Reply #23 on: August 30, 2022, 08:59:50 PM »
Most versatile release this year for me.

Drilled 65 x 3.5 x 30 close to my house shot layouts gives me a smooth and predictable shape and motion during league and most local tournaments.

Compared to my Zen it dug in the mid lane sooner due to the 4k Fast cover. Definitely a slight step up. Slightly less than a Helios with the same carry percentage

Performed well from multiple angles on the 40' Dutchman pattern thus the versatility of the cover combined with the Ikon core.

Should be apart of your league and tournament arsenal this fall.

Keith Cordy
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Re: Idol Cosmos
« Reply #24 on: September 02, 2022, 04:58:50 PM »
Roto Grip Idol Cosmos Ball Review

Rev Rate: 375

Ball Speed: 15-16 mph

PAP: 5 inches over, 1/2 inch up

Layout: 60x5x30

The Idol Cosmos is the fifth installment in the Idol series stateside. In testing this ball, I found it to be buttery smooth and very deliberate with its downlane motion. I was very surprised at this because I had envisioned it doing something else…like more of the Idol Pearl than a bigger version of the !Q Tour. But I love it! Its almost like OG Idol meets a touch of the Idol Helios…the smoothness of the OG with a sprinkle of the slow strong nature of the Helios. It’s another piece of versatility that’s on my “bowling rack” to add to my bag for leagues and tournaments.

Another popular Idol to bang out high scores!

Jamaal Oliver

Chad’s Pro Shop

Andy B’s - Bartlett

Memphis, TN


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Re: Idol Cosmos
« Reply #25 on: September 12, 2022, 01:06:35 PM »

Length: 43'

Volume:22.5 mLs

Type (THS, Sport Pattern etc):THS
The Idol line was SO Amazing in the beginning with the first 3  domestic releases.  I much of a fan the few in the middle, but with the NEWEST inception of the Idol, the Cosmos, I am seeing this to be very versatile.

The Idol Cosmos while being a peal, has a very heavy nano load.  It reads the mids well with a strong but not necessarily angular motion.  This ball takes well to surface adjustment.  the more surface, the more it blends the dry but with polish, this thing can get after it down lane!

My layout is pin up, 4x5x2!

Other balls getting a lot of play:
Dark Code-4x6x2
Night Road-4.5x4.5x3.75
Wolverine Dark Moss-4.25x5.25x2


Likes: versatility

Dislikes: none!

Casey Mattingly
Storm/RotoGrip Staff
Turbo Regional Staff
Coach's Corner Pro Shop
Alexandria, IN


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Re: Idol Cosmos
« Reply #26 on: September 15, 2022, 10:10:15 AM »

Type (THS, Sport Pattern etc): Multiple (Sport and Recreational)


The all new Roto Grip Idol Cosmos bowling ball features the Ikon Core and the pearlized XtremeTrax coverstock, which should result in a cleaner motion through the front of the lane while providing stronger reaction down lane. I have seen so many different Idol bowling balls roll very well for wide variety of bowlers.

Personally, I haven’t had much success with the Idol series. I have tried several layouts on different Idol’s and just couldn’t seem to find the sweet spot. I drilled my Idol Cosmos with my usual pin-up layout: 65 x 5 x 30. I expected this ball to flare a good amount and, due to cleaner coverstock, I thought it could be a good transition ball when stronger asymmetrical bowling balls start be too much.

The Idol Cosmos is a very “rolly” and “forward” to me. I was expecting a little more response in the friction out of this ball. For my ball roll and the layout I chose for this ball, it seems to be “in between” – too much flare to keep it online, to “forward” to open up the lane. I did find a decent use out of this ball on shorter patterns, where I really needed to slow down the backend motion. I can see this ball being pretty good on shorter “house-shots” as well. I would, perhaps, drill another Idol Cosmos with a pin-down layout and use it as a “specialty” ball for shorter oil patterns.


Want to see me throwing the Idol Cosmos? Watch my video on YouTube:


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Re: Idol Cosmos
« Reply #27 on: October 05, 2022, 09:19:03 PM »
Ball Specs:
Roto Grip Idol Cosmos
Coverstock: 4000-grit Xtreme Trax™ Pearl Reactive
Weight Block: Ikon™ Core (Symmetrical)
Color: Stardust Teal

The Idol line continues to pump out bangers! We loved the Xtreme cover found in the Idol Helios and so did many of our customers. Having a pearl version of this cover feels like cheating! We threw some polish on the cover to push that reaction further down lane and we are loving the shape We hope the timing of this release doesn’t keep people from trying our this ball because it really is something special. If you have purchased any of the Idol line of bowling balls then this is a must have. This is also a unique shape to put into your tournament bag. Great job SPI!

Kyle, Joel, & Dean Johnson
Roto Grip Pro Shop Staffers


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Re: Idol Cosmos
« Reply #28 on: October 10, 2022, 05:01:34 PM »
Roto Grip Idol Cosmos
Coverstock: XtremeTrax Pearl
Core: Ikon
Layout: 5 x 3 x 2.5

I did some of my best bowling last season with the Idol Helios. The Helios has a solid version of the Cosmos cover. Out of the box, I found the Cosmos very smooth and round. That would be fine for sport patterns but going into league season, smooth and round did not look good in my home center. To make it more immediately useful, I applied Storm Step 2 for a polished, cleaner look. With this slight surface tweak, I find this ball to be a first game of league type ball. It handles the buildup of volume inside quite well and the round nature of the cover/core allows for some blending action when I miss right. I have had quite a few league nights so far this year where I was able to throw this Cosmos all 3 games just paralleling my eyes and feet left. As always, you can’t go wrong with an Idol!
Chris Freeland
Storm Amateur Staff
Bowler Info: PAP 4 1/8 x 3/4 up, Speed 18, Rev Rate 425


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Re: Idol Cosmos
« Reply #29 on: October 12, 2022, 06:44:30 PM »
Another Idol, another homerun. Roto Grip introduces the second Idol coming back into the Idol Series, the Idol Cosmos. This ball has the Xtreme Trax Pearl Reactive Coverstock wrapped around the Idol core we have all come to love. What's special about this ball is that it is not your typical skip-flip pearl. The Xtreme Trax Pearl coverstock maes this idol have a more rounder and smooth shape throughout the lane.

This is huge for the Roto Grip line and for more advanced bowlers that are looking for a stronger pearl but not something that's going to get down the lane and go sideways. This ball is going to come into play on wet-dry house shot conditions and for the flatter patterns that players see on the regional and national PBA Tour's.

Predictability, reliability, Idol Cosmos. Get yours now at your local Storm VIP Pro Shop.


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Re: Idol Cosmos
« Reply #30 on: October 12, 2022, 07:43:59 PM »
Roto Grip Idol Cosmos Ball Review

Bowler Stats:
Speed: 15.5 MPH
Rev Rate: 300
Tilt: 3-5 degrees
Axis Rotation: 60 degrees

I have drilled 4 releases in the Idol line and the only one I liked the reaction of was the Idol Pearl. So when Roto decided to release another with the nano pearl cover I wanted to see if I matched up with it. The Helios was too slow for my eyes and I was hoping for a quicker response pearl like the original Idol Pearl. With the stronger covers I drilled the Cosmos with a 5 X 4 X2 ¾ VLS layout to help the ball have length but recover down the lane. Out of the box the reaction was continuous and not too quick on our normal house shot. I scratched the ball with 2000 abralon to give it some teeth in the dry but the cover is too strong and not as responsive as I would have liked it on the house shot.

I am bowling the PBA 50 tour this year and did have success using the Idol Cosmos on the Mike Aulby 39’ pattern. For me this is a stronger pearl I can use to play the track area on the fresh. I have a lower rev rate and a high amount of axis rotation so this is a controllable option on older lane surfaces.

Pete Dohan
Storm Amateur Staff