Roto Grip GEM
✓ USBC Approved ✓ PBA Certified Discontinued
USBC approved 2022-01-04 · Released 2022-03-11
Heavy oil
- Coverstock
- Micro Trax Solid (solid)
- Core
- Defiant LRG (asymmetric)
- Factory finish
- 2000 Grit
- Flare potential
- High
- Color
- Citrine/Ruby/Amethyst
Specs by weight
Not published in 15 lb — showing all available weights.
| Weight | RG | Differential | Int. Diff |
|---|---|---|---|
| 16lb your weight | 2.470 | 0.051 | 0.016 |
| 15lb your weight | 2.470 | 0.053 | 0.016 |
| 14lb your weight | 2.500 | 0.052 | 0.015 |
| 13lb your weight | 2.500 | 0.032 | 0.010 |
| 12lb your weight | 2.590 | 0.029 | 0.008 |
International listings
This ball is sold through 2 national distributors. Each publishes its own product page and spec sheet, so specs and colour names can differ between markets.
-
Japan HI-SPORTS
-
South Korea Bowling Korea
Where to buy
Manufacturer price —
Prices shown for 15lb
—
About this ball
GEM
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