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Author Topic: Rubicon UC2  (Read 15530 times)


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Rubicon UC2
« on: February 11, 2021, 11:01:24 AM »
Roto Grip is doing something different with the Rubicon upper-mid performance balls in their HP3 line of balls. Like the original Rubicon the Rubicon UC2 (Ultimate Concept 2) uses the asymmetrical Rondure Core which was designed to provide more ball motion overall without the need for the now-banned balance hole. This performance core is wrapped in Roto Grip's eTrax-S20 Pearl Reactive coverstock which was formulated to offer a response on various lane conditions due to its ability to clear the lane then react powerfully on the backend. Out of the box this ball is ideally used on medium to medium/heavy oil conditions.

Color: Cosmic Black/Purple Sky
All colors do vary somewhat from the picture shown
Core: Rondure Core (Asymmetrical) (14-16#)
Coverstock: eTrax-S20 Pearl Reactive
Finish: 1500-grit Polished
RG: 2.49 (for 15# ball)
Differential: 0.052 (for 15# ball)
Recommended Lane Condition: Medium to Medium/Heavy



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Re: Rubicon UC2
« Reply #16 on: March 11, 2021, 12:22:41 PM »
Roto Grip UC2 Ė layout 4.5 x 4 x 2
PAP - 5 7/8 over and 3/8 up
Style Ė stroker
Ball Speed Ė 14 mph
Condition Ė league pattern, HPL surface

The amount of quality products coming from the Roto Grip side has been tremendous lately. When I could roll anything from the 3 brands of Utah and cannot put down the RG product line, you know it is special.

Wow, the UC2 is an incredible addition to the current lineup of bowling balls. When Schlem announced the concept behind the Rubicon line it made sense. I have been someone over the years that has gravitated to symmetrical pieces based upon my rev rate and ball speed. However, this concept with the milder asymmetry to mimic a weight hole and still give somewhat of a symmetrical response is a home run.

From what I had seen of the ball it was quite angular and did not stop on the backend. We drilled mine with a bit of a stronger pin then what I normally use to help blend some of that response, and it did not disappoint. I wanted the ability to circle the lane or weaken the hand and play straight with this ball. I got that and more with the UC2.

I've left the ball in box surface so far. Typically, I want to take a pad to a ball right away to crack the shell. I really like what the ball does so far, so Iíll probably wait a while before making any surface adjustments.

I would highly recommend this ball as an option for just about everyone. It is really that special of a ball. If you paired this with a Rubicon and a spare ball you could tackle just about any league condition. Do not miss out on adding this ball to your arsenal.


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Re: Rubicon UC2
« Reply #17 on: March 12, 2021, 02:03:53 PM »
Layout: 40 x 4 3/16 x 35

Similar to how I could not put down the Idol Synergy as soon as I drilled it, the same thing has happened with the Rubicon UC2 Ė I have hardly thrown any other ball since I put holes in this purple beauty. It is super clean in the fronts but has a good bit of midlane traction to go with the strong backend that it possesses. I purposely drilled this ball with a stronger layout than I normally would, to make sure that the ball would not be too skid-flip. What I am left with is a strong arcing pearl ball that I can use on anything from medium-heavy to medium-dry lanes, with a ton of energy left when it goes through the pins.  As you'd likely guess, the original sanded Rubicon is a perfect ball to use when the lanes are too oily for the UC2.

Mike LeViner


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Re: Rubicon UC2
« Reply #18 on: March 15, 2021, 07:47:37 PM »
The Rubicon UC2 is one special ball I really liked the original Rubicon so when i seen this got releases I couldnít be more excited.
     I always tend to gravitate to Pearl reactive cover stocks mainly letting me play straighter for longer.  More of my comfort zone for sure if I can stay playing 2/3 arrow I will have good sets in league.   
   The UC2 for me is about 3 boards weaker then the OG Rubicon but obviously much different shape for sure. OG is super slow and controllable as the UC2 is more skid flip for me.


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Re: Rubicon UC2
« Reply #19 on: March 19, 2021, 12:53:33 PM »
Ball Specs
Rubicon UC2
Cover: 1500 grit polished, eTrax Pearl Reactive
Weight Block: Roundure Core (Asymmetric)
Color: Cosmic Black/Purple Sky

I never had the opportunity to the original Rubicon but after throwing the Rubicon UC2 I can see why the original Rubicon was like so much. I drilled my Rubicon UC2 pin down with the purpose of using it on our house shot for league. This ball did not disappoint in anyway. It was clean though the fronts and gave me a nice mid lane reaction while storing all of itís energy for when it hit the pins. I see the ball not only performing well on the typical house shot by also managing to make itís way into my tournament bags for when I need a reliable ball that I can trust will not over react on me when I need something controllable. This was another fantastic bowling ball put out by Roto Grip. If you havenít already picked yours up I wouldnít highly suggest you making sure you get yours sooner rather then later because you will not regret it. 

Will Tefft
Roto Grip Staff Member


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Re: Rubicon UC2
« Reply #20 on: March 22, 2021, 04:48:44 PM »

Length: 42 ft

Volume: Medium

Type (THS, Sport Pattern etc): THS


Likes: Effortless through the front, consistent at reading end of pattern

Dislikes: None so far!

First, some stats about me. I am a medium speed (15-16 MPH) player and slightly rev dominant. Last I checked, rev rate around 380 RPM. My A game is playing the middle part of the lane on a house pattern (between 15 and 20 at the arrows) but do not have a problem moving to either extreme if the pattern calls for it. My PAP is 4 7/16 over by 5/16 up.

The layout used on the ball is a 40 x 4 3/8 x 20. I wanted a piece in my bag that was effortless through the front but plenty of engine downlane for a sharp backend reaction. It has a 1500 Grit polished finish on the eTrax pearl reactive coverstock. I'm a big fan of darker color bowling balls going down the lane so I was very excited to try this one out.

The lane surface at my home house, Port Huron Lanes in Port Huron, MI, is Brunswick ProLane with a 42' house oil pattern.

For the house pattern, I always start with my feet on 25 and just aim at 15 to get the ball to 6-7 at the break point. I drilled this ball with the idea that it would get plenty of use when I need to get steep with my launch angle and this ball  definitely fits the bill. On the fresh, this ball reads the end of the pattern very aggressively so I do not think it will get much play until the lane breaks down a bit. In game 3 of a standard 5 man league, I was able to stand on 40, hit 17-18 at the arrows, go out to the dry and watch it boomerang back. If you need something to help get you through the front part of the lane, this shiny coverstock does that effortlessly and the strong core all but guarantees that it will read the end of the pattern properly. Very reliable and a perfect compliment to the original Rubicon!


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Re: Rubicon UC2
« Reply #21 on: March 24, 2021, 07:46:16 PM »
IM GOING TO SAY IT NOW!!! BALL OF THE YEAR!!! Ladies and gentlemen, Roto Grip has hit a home run with this release; Rubicon UC2. Same core featured in the original Rubicon with the Idol Pearl Coverstock. By far the best asymmetrical pearl bowling ball I have ever thrown hands down! If you need a ball thatís clean through the front part of the lane with some serious angle downlane, this is the ball to have in your bag.
I was very surprised at first at how much angle this ball creates off of the friction and it really burns up and goes forward, like the usual asym bowling ball shape. I can stay right and throw this ball hard or I can get in and create a ton of shape with this piece. Either way, this ball sends pins flying. In a three-month span, I have 4 300ís and 3 800ís with this ball. I cant say enough good things about this ball. Only thing left to say is get your as soon as possible at your local storm vip proshop if you want to keep up with the competition.


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Rubicon UC2 Review
« Reply #22 on: March 28, 2021, 11:55:58 AM »
Roto Grip Rubicon UC2 Ball Specs:

Cover stock Etrax Pearl Reactive
Rondure Core (Asymmetrical)
Color Dark Purple 
Finish 1500-grit Polished

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

 The Roto Grip Rubicon UC2 has been very popular at our shop. We did a Matchmaker Ball Demo and sold a good number of these balls. The UC2 gives a ball motion most bowlers are looking for. It is clean enough through the front with a very nice angular move to the pocket. I feel that Roto has created an Asymmetric ball that does not read too early and we are getting balance hole fine tuning without the use of the now banned extra hole.  I have been really impressed with how this ball can master a house shot but is strong enough when you are playing a flatter more heavily oiled pattern. The Rubicon UC2 has plenty of bite in it for traction. The UC2 is stronger in reaction than my Trend but just a bit weaker than my Nuclear Cell. This is probably due to my Nuclear having a stronger mass bias. I did have a bit  of trouble leaving ring 10ís when I first rolled the UC2 on our house shot but after a teammate suggested I slow it down a bit the ball seemed to carry everything. This effect could also, I feel be achieved by hitting it with a 2000 or 3000 pad. I used to be uncomfortable sanding pearl balls but over the last 6 months or so I adjust with no worries because I feel the new covers are so good and made for adjustments. I can trust this ball to come back if I miss to the outside. On a lot of the newer Asymmetric balls I am drilling  the Mass Bias closer to the thumb but on the Rubicon UC2 I have put the Mass Bias next to the thumb or out on the VAL with great success. I feel this ball will be a strong seller for Roto Grip.

The UC2 is a very strong pearl with control.
The entry angle and hit are very good.
The surface takes adjustments easily for fine tuning.

Video Link:

Glenn Wendel
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Storm Pro Shop Staff

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Re: Rubicon UC2
« Reply #23 on: March 29, 2021, 10:36:45 AM »
Rubicon UC2

The Roto Grip Rubicon UC2 is the ball to get if you like the Rubicon but need more length and backend. This HP3 line ball is an asymmetric that feels like an HP4 line ball.  It skids nicely through the heads when there is oil like on fresh and delivers a strong backend motion.  Just make sure you have some head oil or it will start a little early and be super strong on the backend. It reminds me of the Idol Pearl just stronger overall.  It will jump off the dry as most reactive pearls should and will do. Itís great compliment to the Rubicon. Hitting Power is great like every Roto Grip Ball Iíve thrown. I can play pretty much any line but it seems best around 3rd to 4th arrow. Any deeper in the oil ill need to slow the ball speed for it to pick up if I donít pitch it to the dry. My PAP is 5-1/8 and 1/8 up. Usually around 15-16mph, Iíd probably be classified between a tweener and a cranker. I drilled this one 5.5x4x2
See my ball review video on YouTube here:


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Roto Grip UC2 by Casey Murphy
« Reply #24 on: March 29, 2021, 10:54:35 AM »
Orientation:  Right Handed
Rev Rate:  400 RPM
Speed:  16-17 MPH
PAP:  4 Ĺ over and Ĺ up

Location:  Enterprise Park Lanes, Springfield MO
Pattern:  High Volume THS
VLS Layout:  5 x 4 x 2 1/2
Dual Angle Layout:  50 x 5 x 40

The UC2 is the pearl version of the OG Rubicon and the pearl mild asym replacement for the Idol Pearl.  Itís amazing.  Itís exactly what I wanted this ball to be.  Itís clean, hits the midlane plenty but not so much that it stops like the BIG asyms.  I have a pin down one that I throw a ton and I can throw it on the fresh and get in quite a bit before switching.  It acts an awful lot like my pin down Idol Pearl with a weight hole that I threw on everything and loved.  The UC2 is a must have from Roto Grip.


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Rubicon UC2
« Reply #25 on: March 30, 2021, 03:43:41 PM »
Roto Grip Rubicon UC2

Bowlers Info: RH tweener, PAP 4-1/2 x 7/8 up, 365 RPM, 17* of Axis tilt, 60* of Axis Rotation

Ball Layout: 50 x 5.5 x 50

Finish: OOB

For anyone that has enjoyed success with the Rubicon and the Halo Pearl, you will really like the UC2!!!  I drilled this similar to my old Halo Pearl wich was a 5.5Ē pin over middle finger and PSA kicked right.  For me, the UC2 is very skid/flip motion, cleaner than the Halo Pearl was but generally quicker off the spot.  I can see using this in the later games where my angles need to get steep and I need the quick recovery.  Amazing piece that allows me to open up the lane and tear Ďem up!!!

Chris Martinez
Storm Amateur Staff


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Re: Rubicon UC2
« Reply #26 on: March 31, 2021, 09:29:12 AM »
The Rubicon UC2 is the pearlized version of the ever popular Roto Grip Rubicon. The cosmic black/purple sky color eTrax pearl cover has an old school type color combination, but brings it to a modern era and feel with the bright pink lettering. The 15lb Rubicon UC2 numbers are 2.49 Rg, 0.052 diff, and 0.011 intermediate diff. The UC2 uses the same Rondure core as with the solid Rubicon. The Rondure core was designed by Roto Grip based on the new USBC no balance hole rule to give bowlers the reaction shape of a symmetrical bowling ball with a balance hole (that alters the core shape and final drill numbers), making it stronger than the same ball drilled without an extra hole. This helps bridge the gap between symmetrical, and big asymmetrical bowling balls.

I drilled the UC2 with a 4.5 X 3 X 4 layout, the same as my pin down Rubicon. Comparing the two balls in the respective box finishes, the UC2 clears the fronts and mids much easier by a few feet, and has a much more defined change of direction. The overall board coverage of the UC2 is a few boards less than the solid version, both in their respective box finishes. I polished my Rubicon with Storm step #2, to the same 1500 grit finish as the UC2 for comparison. With the Rubicon polished, the UC2 still has a much more defined breakpoint, and out hooks the polished Rubicon by a few boards. The UC2 finds the perfect line of being controllable and just on the verge of (without being too skid-flippy) a hockey stick type reaction. The UC2 likes some friction on the lane to help it slow down and go through the pins the right way. As always, a little surface can help with controlling when the UC2 wants to slow down, to produce the right amount of roll through the pins.

I like the UC2. Not only is it a great looking ball, the reaction shape is very usable for most conditions that have some friction to throw to. There would be a place in any bowlers bag to have both a Rubicon and the new UC2, with no overlap. The differences of the two are great enough, that I could see a hybrid version possibly coming to market, at least that would be my wishful thinking. Stop by your local certified pro shop, and drill a Rubicon UC2, and OWN IT!
God creates us with a blank canvas, and the "picture" we paint is up to us. Paint a picture you like and love!


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Re: Rubicon UC2
« Reply #27 on: March 31, 2021, 09:03:24 PM »
Rubicon UC2
The Rubicon UC2 is a pearl small asymmetric ball (cores with low intermediate differential) and pearl version of the original Rubicon solid. First blush is that the UC2 is amazing, and it is already making BIG waves on the PBA tour and in leagues throughout the country. The Rubicon UC2 out of box is very clean and because of the low int. diff. is a med-med/fast response reaction down lane. I am really impressed with how versatile the UC2 is for as clean and responsive it is.


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Re: Rubicon UC2
« Reply #28 on: April 05, 2021, 08:04:41 PM »
The Roto Grip Rubicon UC2 is the Pearl Compliment To the Solid Rubicon, Although i did not have a chance to throw the original Rubicon i can see why the reviews were outstanding on it. This Ball Reminds me of the old school Storm/Roto Reaction, this ball Really Corners hard down lane and has recovery for Days. When i need to get left and throw it right this is my go to ball. This ball is perfect for when the lanes break down a bit as it glides down the lane effortlessly.

Chase Roloson

Roto Grip Amateur Staff

Ko's Proshop Staff

#StormNation #SquadRG #900Global #StrikingWorldwide


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Re: Rubicon UC2
« Reply #29 on: April 07, 2021, 09:58:02 PM »
Rubicon UC2 Ball Review

Ball Specs:
Coverstock:  pearlized eTrax
Core: Asymmetric Rondure
RG: 2.49   Diff:  .052    PSA:  .011

Bowler Specs:
Rev Rate: 325 rpm
Speed: 15.5 mph
PAP: 5 ľ over   ĺ up

Layout:  Dual angle 30 X 41/2 X 30

Video Comparison review:

The first time I saw this ball go down the lane was during a MatchMaker event. The bowling center that was hosting is a high friction center that I bowl team tournaments in. After the first session of the MatchMatcher and seeing all the different types of bowlers roll this ball and have a similar ball reaction I knew I needed this ball in the arsenal. The Rubicon UC2 was clean through the fronts and had a noticeable change of direction off the dry for all the bowlers rolling it.

For me the Rubicon UC2 is what I wanted from the !Q Emerald on house shots. It has the length but quicker off the dry than the !Q Emerald. With the lower differential in the !Q line the emerald was way too long and very slow off the dry which caused it to be very conditional for me. The Rubicon UC2 with a stronger core gives me the same length but with the quicker off the dry reaction down the lane it lets me play deeper on the lanes (3rd and 4th arrow) which the Emerald wouldnít allow me to do.

This ball is one of the more versatile pearls in my arsenal. Along with the team tournaments I use it on the second shift league I bowl in.  Since pearls give me extra length, with my speed and rev rate, I will have a 2000 abralon handy to help with any over/under reactions I may encounter.

Pete Dohan
Storm Amateur Staff


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Re: Rubicon UC2
« Reply #30 on: April 09, 2021, 03:20:43 PM »

Rubicon UC2
Versatile Ė Motion Ė Controllable
These are the three words that comes to mind to me when I think about how the Rubicon UC2 rolls for me. Versatile because I can play straight down 10 board or if I need to open my angles I can play left and somewhere around 20 board out to 5 and still have the hitting power through the pocket. Motion of this ball is crazy! Everyone I know compares this ball to the Idol Pearl and I loved that ball which made this choice a no brainer. Controllable is the last word I would say about this ball because even with the snap and quick turn off the spot this ball has it is constant and predictable. Highly recommend if you want a ball that is going to move more in the backend and if you are looking for a ball that help you open your angles.

Zach Shoff
900 Global Amateur Staff