win a ball from

Author Topic: Idol Cosmos  (Read 11198 times)


  • Administrator
  • Hero Member
  • *****
  • Posts: 886
Idol Cosmos
« on: July 15, 2022, 05:02:17 PM »
Ball NPS Score: 100.00 has the largest selection of bowling balls
Click here to shop.

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


Kevin Duncan

  • Jr. Member
  • **
  • Posts: 81
Re: Idol Cosmos
« Reply #1 on: July 17, 2022, 08:36:24 AM »
Roto Grip Idol Cosmos
Layout: 5 x 4 x 2
Rev Rate: 325 rpm, 7 degree of axis tilt, 40 degree of axis rotation
Testing information: 40 foot THS (medium to light volume)
Bowling Center: Fulton Bowling Center
Kegel Machine – Brunswick Anvilane

The Roto Grip Idol Cosmos pairs the Xtreme Trax pearl coverstock with the proven IKON core. The Idol Cosmos makes a statement – on the lane and on the shelf.  I like the green color of the coverstock.  The ball just looks like it will perform well.  During testing, I definitely got an Idol Pearl vibe.  I would say it may be a touch stronger than the its pearl predecessor but similar in ball motion.  When tested against the newly released Storm Infinite Physix, the Idol Cosmos was cleaner through the front part of the lane and retained more energy for a more defined hook motion down lane.  The Idol Cosmos is going to be a good one folks.  If you are missing your Idol Pearl, this is an option for you.
Visit your local Storm VIP Pro Shop!

Rick K

  • Jr. Member
  • **
  • Posts: 72
Re: Idol Cosmos
« Reply #2 on: July 17, 2022, 12:55:50 PM »
Idol Cosmos • HP3 Series
Core • Ikon • Symmetric Core
Coverstock • XtremeTrax Pearl Reactive • Finish 4000-grit Abralon
Weight • 15 lbs. RG • 2.49 Differential • .052
Layout •4 x 4 x 1 ½
Tester PAP • 5" R, 5/8" D Tester Axis Tilt • 11° Testers Rev Rate • 325
Test Pattern • 42' THS (Typical House Shot) • Modified, Kegel Stone Street

Roto Grip continues their legendary success of the Idol line with the release of the Idol Cosmos. And at the heart of the Cosmos is the proven and reliable Ikon Symmetric Core. Combined with the all-new XtremeTrax Pearl reactive cover, the Idol Cosmos not only performed with exceptional results but also has a versatility that makes the Idol Cosmos a strong choice for your arsenal. So, let's take a closer look at how the Idol Cosmos delivered on a THS!

The Ikon Symmetric Core debuted in the original Idol line and is a well-balanced core. This low Rg symmetric has a smooth dynamic roll through the mid-lane. And its high differential delivers a strong flare giving the Ikon Core a smooth, dependable motion for many different style players. Specifically for straighter players like me, you will love the Ikon Cores' ability to get down the lane while retaining an intense amount of energy that explodes through the pins. And for those rev-challenged players -the Ikon core maintains a strong continuation to kick out those annoying single-pin raps!

The new Xtreme Trax Pearl Reactive cover is what makes the Idol Cosmos stand out! This emerald Pearl Reactive cover has a firm bite in the front part of the lane, and I loved how it had a clean transition at the back end. Of course, being a pearl, it goes longer down the lane than its solid counterpart found on the Idol Helios. Yet, being a straighter player, I found the Xtreme Trax Pearl blended the skid, hook, and roll phases smoothly and distinctly all night on a THS. That type of predictability makes the Idol Cosmos an excellent choice for bowlers with a higher speed and lower rev rate like me. And the 4000-grit Abralon finish was ideal for your typical night of league bowling.

In conclusion, the Idol Cosmos is an all-around great new release from Roto Grip. Straighter and more conventional type players like me will enjoy the predictability and comfort the Idol Cosmos brings to your game. Further, the Idol Cosmos will deliver results by itself, but when added with an Idol Helios and a spare ball! Then, you have a great THS arsenal to give you that competitive edge all season long. So, visit your local Pro-shop operator today and see how the Idol Cosmos will complete your arsenal! It's worth it!

Rick Klimowicz
Storm Products Pro Shop Staff
Roll the Ball Pro shop
Penndel, PA


  • Jr. Member
  • **
  • Posts: 30
Re: Idol Cosmos
« Reply #3 on: July 17, 2022, 01:25:14 PM »
Idol Cosmos is a good piece for Medium Oil Patterns. Compared to the Idol Helios, the Cosmos has more length with a smooth continuous Backend motion. Good piece to go with when the front part of the lane goes away or when the lanes get over/under reaction with other pieces. Compared to the 900 Global Zen, Cosmos is a few boards more all around.


  • Jr. Member
  • **
  • Posts: 36
Idol Cosmos
« Reply #4 on: July 18, 2022, 02:44:31 PM »
The idol line continues to come out with the best balls in any line. We all liked the xtreme cover that was on the idol helios. So it only made sense for roto grip to come out with a pearl version with the xtreme cover. This idol cosmos comes at 4000 grit not like your typical shinny ball coming from utah. If this ball hooks too soon for you, you could hit the ball with a 1500 grit abralon pad and polish it to get it back to storms original. For you more speed dominant players this ball should be money for you guys at the 4000 grit abralon, with the pearl cover.

   Anthony W


  • Jr. Member
  • **
  • Posts: 26
Re: Idol Cosmos
« Reply #5 on: July 18, 2022, 03:23:44 PM »
The Infinite Physix is the newest iteration of the Atomic Core found in all of the previous balls in the Physix line. The REX Pearl coverstock originally featured on the Dark Code gives this ball a huge upgrade. The Infinite Physix is strong, smooth and continuous. It has the feel of a beefed up version of the original Physix. It tips just a bit harder downlane and overall is 3-4 boards stronger than the original Physix. If you like the Physix line, you're gonna love this one!

YouTube Channel: Millennium Bowling Supply

-Chase Valenzuela

PJ Haggerty

  • Full Member
  • ***
  • Posts: 181
Re: Idol Cosmos
« Reply #6 on: July 29, 2022, 12:16:03 PM »
Roto Grip Idol Cosmos Ball Review by PJ Haggerty

The Idol line from Roto Grip has been extremely successful and I’ve been a big fan of them since the original, pink Idol.  The Cosmos is the latest release and the biggest difference is in the coverstock.  The brains in Utah used a pearl Xtreme Trax cover along with the same symmetrical weightblock that we’ve seen over the years.  The main purpose of the Cosmos was to create a cleaner, pearl version of the Idol Helios, and it has delivered.

I’ve drilled one Cosmos so far and will likely drill another.  I think I drilled the first one too strong when I drilled it with a 4 x 4 layout.  This really smooths out the response time, but is still very useful.  I think I’ll be able to use this Cosmos on shorter patterns when I need the ball to bleed energy at the end of the pattern.  When I drill another one, I’ll likely drill it with a 5 x 4.5 layout to create more length and try to make it usable on more patterns.  Also, I think the Cosmos will take surface changes extremely well.  Kris Prather used a polished one on the PBA League shows and it looked awesome.  Mine has the box surface on it and it's much smoother.

Overall, if you need a cleaner, responsive ball with a low RG that will be extremely adaptable to surface changes, you should drill an Idol Cosmos! 


  • Jr. Member
  • **
  • Posts: 35
  • We ain't ever getting older.
Re: Idol Cosmos
« Reply #7 on: August 03, 2022, 05:31:49 PM »
The Idol Cosmos is the pearl counterpart to it's predecessor the Idol Helios. For me, it's not the usual "way longer, way sharper" shape that you expect out of any pearl version of a ball. The Cosmos is definitely clean up front, but is exceptionally smooth down lane, never giving me the hockey stick motion or anything unpredictable. It's extremely good at controlling the pocket when the lanes start to transition. I went pin up with mine (4.5x30), and I couldn't be happier with what I see. It stands up in the mids decisively and kind of calmly and predictably makes the left turn. I'm usually not a huge fan of pearls, I can truly say this is an exception.
Zack Newman
900 Global Amateur Staff


  • Full Member
  • ***
  • Posts: 132
Re: Idol Cosmos
« Reply #8 on: August 05, 2022, 05:13:29 PM »



Type (THS, Sport Pattern etc):THS


Core: Ikon
Coverstock: XtremeTrax Pearl
Finish: 4000
RG: 2.49
Differential: 0.052

Right-Handed Tweener
Speed: 12-13 mph
Rev Rate: 315
PAP: 4 7/8 Right 3/8 Up

Ball Layout: Pin Up 5 3/4 Pin to Pap 1 inch pin buffer

With all the honor scores that the Idol Helios racked up, and my own success with the ball I couldn't wait to get my hands on a pearl version. I wasn't disappointed when Roto Grip releases the Idol Cosmos with the same Ikon-ic core shape and the XTREMETRAX™ Pearl Cover.

What was already an incredibly continuous ball motion is further enhanced with the additional length provided by the pearl additive. The cosmos provides an ideal transition piece from the Helios and makes it easier to get the same reaction when the heads go.

I tested the Cosmos on the high volume 43 foot house pattern at my home center. The cleaner cover did play a little more friendly closer to the friction. While there's lots of volume there is plenty of shape to this high ratio pattern. The helios is so dynamic I definitely preferred playing the hold to playing the friction. That being said I definitely prefer the Cosmos after a game or so, when the hook spot has had more time to develop. It is useful with straighter angles out of box, but where this ball really shines (pun intended) is when you polish it up and open your angles with it. It's makes a great, quick move that generates great angle through the pins when you have to get steeper through the front of the lane.


  • Jr. Member
  • **
  • Posts: 64
Re: Idol Cosmos
« Reply #9 on: August 07, 2022, 01:46:25 PM »
Ball Specs:
Roto Grip Idol Cosmos
Coverstock: 4000-grit Xtreme Trax™ Pearl Reactive
Weight Block: Ikon™ Core (Symmetrical)
Color: Stardust Teal

Speaking of some of the most iconic lines in bowling history the Idol line is right up there with the best of them. The idol Helios was a great addition to the line, and they followed it up by introducing the Idol Cosmos. The Cosmos allows you to have a similar motion as the Helios with a pearl cover stock. When the lanes start to break down I pull the Cosmos out and still have the confidence that I am going to get a similar reaction as my Helios. The 4K Fast finish doesn’t affect this ball at all, you still get that pearl reaction. Don’t forget about the appeal this ball really stands out on the lanes. Make sure you go out and pick yours up today!
Will Tefft
Roto Grip Staff Member


  • Jr. Member
  • **
  • Posts: 57
Re: Idol Cosmos
« Reply #10 on: August 09, 2022, 02:46:00 PM »
The newest addition to the idol line the idol cosmos. This ball comes in 4k fast and for a pear is very clean down lane i drilled mine with the layout of 40 x 3 x 60. My goal was to get this ball to stand up faster with my loft and still continue off the spot. Compared to my helios this ball will allow you to move left when doesn't make it back.


  • Hero Member
  • *****
  • Posts: 686
Re: Idol Cosmos
« Reply #11 on: August 10, 2022, 11:51:34 AM »
Roto Grip Idol Cosmos
Layout: 60 x 1 1⁄2 x 60
Finish: 4k FAST
Lane types and pattern types: HPL lane panels with 48ft THS pattern and SPL panels with 46ft
I decided to drill the IDOL Cosmos with one of my favorite THS killer layouts. I bowled in 2
different centers with vastly different lane surfaces and overall length and volume of the THS.
So, while my main ball out of the bag to start has been the Roto Grip HYPED Hybrid for about 9
months now, I was missing that later motion but not super flippy like a Hyped Pearl or even an
Electrify Pearl. Normally, as the night of league matches goes on, The Hyped Hybrid is very
clean and carries a TON, it actually is still at 1500 grit polished and I am determined to leave it
that way, because if it is not broke, don’t fix it, but as the matches progress, I would find I would
need to have a smidge longer length before it would start to make any direction changes, I tried
an Idol Pearl, 2 Hyped Pearls, (2 in P2P and a 6 in P2P) in 1500 grit polished and 4K Fast and
even my own rendition of 4K FAST with finishing it with a 5000 grit pad, nothing seemed to get
me over that mid match hump, until the Roto Grip Cosmos came along. Was able to project
outside where the other lefties were playing, was able to open up the angles and even close
down the angles and play relatively straight with the Cosmos.


  • Full Member
  • ***
  • Posts: 124
Re: Idol Cosmos
« Reply #12 on: August 14, 2022, 07:08:53 PM »
Ball Specs:
Roto Grip Idol Cosmos
Cover stock –Pearl Reactive
Symmetrical Core
Color Stardust Teal
Finish 4000-grit Abralon
Layout 45 x 4.5 x 45

Bowler Specs:
Right Hand. PAP 5” Over 1/2 up
Rev Rate 300. Tilt 20. Rotation 50.
Speed at camera 15.5

The new Roto Grip Idol Cosmos is a very good ball. I like the motion and total hook of the Helios but sometimes it is too much ball for certain conditions. The Helios is hard for me to see transition due to the color I think, so I use it took long before balling down. The new Cosmos is unique because it has the same feel as the Helios even though it has a cleaner and more angular motion and hooks less overall. I can easily see when this ball makes its move also. I have had pretty good luck with the Idol line but the last two have been my favorites. I still use the Synergy on some occasions also. The Idol Cosmos seems to play best for me on medium conditions and I like this ball in box finish or polished. I probably lean on the polished version more than the box finish where I normally bowl.  This Idol Cosmos is different than the Helios in the fact it goes longer and makes a stronger move at the break point. I am not a high rev player, but I am able to move inside on different conditions and still maintain excellent carry. It’s nice when a guy like me can get those extra corner pins to fall.

The Idol Cosmos has a very good and unique motion.
The Cover sands and polishes easily for dialing in a shape on the lanes.
The hit is very good due to the entry angle.

Glenn Wendel
PBA Member
Storm Pro Shop Staff

Video Link:

PBA Member
Motiv Staff Member
Turbo Staff Member

Luke Rosdahl

  • Hero Member
  • *****
  • Posts: 1093
Idol Cosmos Review by Luke Rosdahl
« Reply #13 on: August 16, 2022, 01:26:35 PM »
The Idol Cosmos features the XtremeTrax Pearl coverstock that debuted in solid form on the Idol Helios, and it comes at 4000 grit. The core is the strong and rolly Ikon core the Idol series is known for, and it's a 2.49 RG and .052 differential in 15 pounds. The Cosmos is very strong and round shaping, just like the Helios, but obviously a slightly weaker version. The Cosmos feels like a stronger IQ Tour Nano Pearl that's firmer down lane, it has the control of an IQ with some extra teeth and punch. If both are at box, it's a very good step down from the Helios because it gives you the same type of look but that's a bit weaker and easier down the lane. It's a step sideways from something like the Zen, Zen Soul, and Phaze 3, because while technically it's stronger, it's also not as sharp, and would be a good ball up from something like an IQ Tour because it's the same general look and shape but in a stronger package. While the Cosmos might be quite useful for higher rev rates on easier patterns, it's better suited to tougher conditions I think because of the combination of strength and control. It could be a ball down, or a first ball on medium length and/or flatter patterns.
Storm Amateur Staff
Turbo Regional Staff
YouTube Channel:
Twitter: @LukeRosdahl


  • Jr. Member
  • **
  • Posts: 50
Re: Idol Cosmos
« Reply #14 on: August 21, 2022, 07:32:41 PM »
The new Idol Cosmos features the same successful Ikon core and wraps it in the Xtreme Trax pearl coverstock.  The Idol line which has been hugely popular and successful, has another winner with the Cosmos.  This ball comes finished at 4K fast (4000 grit abralon) and can be easily adjusted to fit the bowler’s needs.  Out of the box, the Cosmos’ pearl coverstock allows it to be clean thru even the most burnt heads and the Ikon core provides the consistent smooth backend that has been a trademark of this line.  The Cosmos has one of the smoothest backend reactions I have seen out of a pearlized ball. This ball is a great compliment to the Idol Helios.  For me the Cosmos is about 4 to 5 boards of less hook than the Helios.  It is a great benchmark ball and is also good on the typical wet/dry house patterns.