# Roto Grip RUBICON UC2

> Bowling ball — data from CarryDown (https://www.carrydown.com/balls/roto-grip-rubicon-uc2/)

- Brand: Roto Grip
- Availability: discontinued
- Released/approved: 2021-01-29
- Coverstock: [eTrax Pearl Reactive](https://www.carrydown.com/brands/roto-grip/coverstocks/etrax/) (pearl)
- Core: [Rondure Core](https://www.carrydown.com/brands/roto-grip/cores/rondure-core/)
- Intended condition: Medium-heavy oil
- Factory finish: Reacta Gloss
- Flare potential: High
- List price (MSRP): no manufacturer price found
- USBC approved: yes (2020-11-17)
- PBA certified: yes

## Specs by weight

| Weight | RG | Differential | Int. Diff | Mass Bias |
|---|---|---|---|---|
| 16 lb | 2.48 | 0.05 | 0.012 | — |
| 15 lb | 2.49 | 0.052 | 0.011 | 0.011 |
| 14 lb | 2.53 | 0.052 | 0.009 | — |
| 13 lb | 2.58 | 0.032 | 0.01 | — |
| 12 lb | 2.58 | 0.029 | 0.008 | — |

## Description

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.Rondure™ Core: A drastic departure from our traditional symmetrical core or symmetrical weightblock designs in the HP3 line, the asymmetrical Rondure™ Core was developed in increase overall ball motion throughout the lane without the aid of an added balance hole.

## Seen on the Pro Tours

- Stefanie Johnson — [2026 PWBA Barbara Chrisman Classic Presented By Storm](https://www.carrydown.com/patterns/2026-pwba-barbara-chrisman-classic-presented-by-storm/) pattern — [2026 PWBA Barbara Chrisman Classic presented by Storm](https://www.youtube.com/watch?v=lTH_HzToe20&t=1369s)