Roto Grip
Perfect Gem
The Roto Grip Perfect Gem is a solid reactive bowling ball with the Gem AI core. RG 2.490 and differential 0.055 at 16 lb.
The Perfect GEM: Precision Meets Power The legend has evolved. We took the undisputed heavy-hitter of the GEM™ series and pushed it through our advanced A.I. Core Technology lab to create a ball that doesn’t just hook—it strikes with surgical intent. By strategically refining the core density, we’ve unlocked a new motion profile that retains the raw strength of the original while offering a cleaner look through the front of the lane and a more aggressive finish at the pins.
Specifications
- Coverstock
- ER1 Solid
- Cover type
- Solid reactive
- Core
- Gem AI
- Core type
- Asymmetric
- Factory finish
- 2000 Grit
- Durometer
- 73–75
- Flare potential
- High
- Color
- Pink / Rose / Onyx
- Weights
- 16 lb
- Part number
- BBMRGW
- Release date
- October 2, 2026
- Core Type
- AI
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Core numbers
|
Weight
|
RG
|
Diff
|
Int. diff
|
|---|---|---|---|
| 16 lb | 2.490 | 0.055 | 0.017 |
Balls like the Perfect Gem
Current balls from any brand with the closest RG, differential, cover and lane condition: an alternative, or a second ball that reacts alike.
