Roto Grip Rubicon UC2 Bowling Ball

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MSRP: $219.95
— You save $80.00
Frequently bought together:


Roto Grip Rubicon UC2 Bowling Ball

  • Color: Cosmic Black / Purple Sky
  • Coverstock: eTrax Pearl Reactive Coverstock
  • Weight Block: Rondure Core
  • Factory Finish: 1500-grit Polished
  • Flare Potential: Medium-High
  • Radius of Gyration (RG): 16lbs - 2.48; 15lbs - 2.49; 14lbs - 2.53
  • Differential (Diff): 16lbs - 0.050; 15lbs - 0.052; 14lbs - 0.052
  • Intermediate Differential (Diff): 16lbs - 0.012; 15lbs - 0.011; 14lbs - 0.009
  • Fragrance: N/A


Powered by the same mildly asymmetric Rondure Core as one of the hottest balls on the planet, the Rubicon UC2 (Ultimate Concept 2) showcases our latest eTrax pearlized coverstock formulation which automatically thrusts this ball onto the MUST HAVE” list for any bowler.

It’s ok, you can thank us later!

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Additional Information

Lane Condition:
Factory Finish:
Polished 1500 Grit
Core Type:
Pearl Reactive
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40 Reviews

  • 5
    Rubicon UC2 Review by Kyle & Joel Johnson

    Posted by Kyle Johnson on Apr 17th 2021

    Ball Specs:
    Roto Grip Rubicon UC2
    Coverstock: 1500 Polished eTrax™ Pearl Reactive
    Weight Block: Rondure™ Core (Asymmetrical)
    Color: Cosmic Black/Purple Sky

    The Rubicon UC2 continues the greatness of the Rubicon line giving you a ball to transition to as the lanes change. Because of this, you see a lot of seasoned veterans and tournament bowlers transitioning to this piece deep in a block. For the average league bowler or someone looking to expand their bag, the price point offers a look into strong backend motion with incredible continuation. Overall, this ball is a very versatile piece of equipment and there is no doubt you will be seeing a lot of purple and black on TV.

    Kyle & Joel Johnson
    Roto Grip Pro Shop Staffers

  • 5
    Rubicon UC2

    Posted by Zach Shoff on Apr 9th 2021

    Versatile – Motion – 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.

  • 5
    Rubicon UC2 Ball Review

    Posted by Pete Dohan on Apr 7th 2021

    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 ¼ over ¾ 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 wouldn’t 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

  • 5
    Roto Grip Rubicon UC2

    Posted by Chase Roloson on Apr 5th 2021

    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

  • 5

    Posted by Tony Marino on Mar 31st 2021

    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.

  • 5
    Must have

    Posted by Chewy Baker on Mar 31st 2021

    For the Price of it it’s a really great bowling ball

  • 5
    UC2 review by Tommy Gollick

    Posted by Tommy Gollick on Mar 31st 2021

    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!

  • 5
    Rubicon UC2

    Posted by Shaun Ciesielski on Mar 29th 2021

    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. It’s great compliment to the Rubicon. Hitting Power is great like every Roto Grip Ball I’ve 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 don’t pitch it to the dry. My PAP is 5-1/8 and 1/8 up. Usually around 15-16mph, I’d probably be classified between a tweener and a cranker. I drilled this one 5.5x4x2
    See my ball review video on YouTube here:

  • 5
    Roto Grip UC2 by Casey Murphy

    Posted by Casey Murphy on Mar 29th 2021

    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: 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. It’s amazing. It’s exactly what I wanted this ball to be. It’s 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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