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Ebonite Turbo X Pearl specs
The Ebonite Turbo X Pearl is a pearl reactive ball with the Turbo core. Here are its published specs, how they compare with the other current balls in our table, and what the numbers mean on the lane.
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| Coverstock | HK22 - GB 10.7 Pearl |
|---|---|
| Cover type | Pearl reactive |
| Core (weight block) | Turbo |
| Core type | Not stated |
| RG | 2.517 |
| Differential | 0.040 |
| Factory finish | 500, 1000, 1500 Siaair / Factory Compound |
| Maker's category | Mid Performance |
| Color | Red / Black |
| Weights | 16-12 Pounds |
| Release date (maker) | September 17, 2026 |
| USBC approved | 8 September 2026 |
Numbers as Ebonite publishes them, checked 21 October 2026. Published for a 15-pound ball. Drilling changes how a ball behaves, so a pro shop's layout matters as much as these numbers.
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What the numbers mean
RG 2.517. That is lower than 33% of the 134 current reactive and urethane balls in our table, so it sits on the high side. Storm says "a high RG ball delays its revving, offering more length and angular motion down the lane."
Differential 0.040. Higher than 35% of the balls in our table. Storm says "a low differential ball tends to have a more predictable, controlled motion."
Pearl reactive cover. Pearl covers skid farther before they hook; bowling.com calls them best on medium to dry lanes, and Storm ties them to dry conditions.
USBC allows an RG from 2.447 to 2.813 inches and a differential of at most 0.060 inches (Equipment Specifications Manual, March 2026). Our ball spec table lists every current ball we track, and who makes bowling balls covers which company owns Ebonite.
Balls with similar numbers
Same cover type, closest RG and differential in our table:
- Hammer Bubblegum Vibe: RG 2.510, differential 0.042
- Brunswick Fury (PK-26 Pearl Reactive): RG 2.524, differential 0.038
- Storm Typhoon: RG 2.530, differential 0.042
- Hammer Raw Hammer (Juiced Pearl): RG 2.537, differential 0.038
Sources: Ebonite product page; Storm, "Inside The Bowling Ball"; Storm, "The Coverstock"; bowling.com coverstock FAQ; USBC Approved Ball List (20 October 2026); USBC Equipment Specifications Manual.