MicroTrax S20 Pearl Reactive Coverstock
E.T. Asymmetric Core
| 16 lb | 15 lb | 14 lb | 13 lb | 12 lb | |
|---|---|---|---|---|---|
| RG | 2.52 | 2.52 | 2.52 | 2.57 | 2.59 |
| Diff | 0.054 | 0.054 | 0.054 | 0.032 | 0.029 |
| Length | 50% | 50% | 50% | 81% | 94% |
| Flare | 87% | 87% | 87% | 38% | 31% |
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Factory Finish:
1500 Grit Polished
From Roto Grip:
USBC (the United States Bowling Congress) implemented new rules regarding balance holes beginning in August 2020, prohibiting the use of balance holes in bowling balls.
In response, ROTO GRIP released the UFO using its E.T. Core, which performs a role similar to that of a balance hole.
With the introduction of the UFO Pearl, they developed a new combination that is easier to use across a wider variety of oil patterns while providing stronger mid-lane motion and continuous backend continuation.
Throughout the entire lane, the UFO Pearl delivers more friction than expected, making it easy to mistake it for the original UFO.
[translated from Korean]