Compare bowling balls
Core numbers are compared in one weight. Some brands only publish them for one weight.
Ebonite Entity Pearl
|
Roto Grip RST Hyperdrive Pearl
|
Brunswick Strategy
|
Roto Grip Transform Pearl
|
|
|---|---|---|---|---|
| Brand | Ebonite | Roto Grip | Brunswick | Roto Grip |
| Line | Pro | HP4 | Pro | HP5 |
| Coverstock | HK22C - Optimize Pearl | U-R1 Pearl | HK22C² - EVO Pearl | Microtrax Pearl |
| Cover type | Pearl reactive | Pearl reactive | Pearl reactive | Pearl reactive |
| Core | Entity | RST AI | Dual Centric | Morph Wing |
| Core type | Asymmetric | Asymmetric | Asymmetric | Asymmetric |
| RG | 2.515 | 2.510 (16 lb) | 2.509 | 2.500 (16 lb) |
| Diff | 0.052 | 0.051 (16 lb) | 0.047 | 0.050 (16 lb) |
| Int. diff | 0.020 | 0.016 | 0.016 | 0.015 |
| Factory finish | 500, 1000, 1500 Siaair / Factory Compound | Power Edge | 500, 1000, 1500 Siaair / Crown Factory Compound | Power Edge |
| Lane condition | Medium oil – Heavy oil | — | — | — |
| Flare potential | — | High | — | High |
| Reaction | Length with strong backend | — | — | — |
| Color | Smoke / Gold / Purple | Space Blue / Deep Purple | Black / Blue / Silver | Red / Cherry / Shadow |
| Release date | November 20, 2025 | September 19, 2025 | April 16, 2026 | July 10, 2026 |
| Status | Retired | Current | Current | Current |
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