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Motiv Nebula specs
The Motiv Nebula is a pearl reactive ball with the Hadron™ Symmetrical 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 | Dark Matter Propulsion™ Pearl Reactive |
|---|---|
| Cover type | Pearl reactive |
| Core (weight block) | Hadron™ Symmetrical |
| Core type | Symmetric |
| RG | 2.500 |
| Differential | 0.045 |
| Factory finish | 5500 Grit LSP |
| Flare potential (maker) | 5"+ |
| Maker's category | Medium Oil |
| Color | Cosmic Black Pearl |
| Weights | 12, 13, 14, 15, 16 |
| Release date (maker) | AVAILABLE 11/26/2025 |
Numbers as Motiv 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 2.500. That is lower than 43% 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 0.045. Higher than 43% 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.
Symmetric core. Storm says symmetric balls have "RG values consistent across all axes" and a smooth, predictable roll.
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 Motiv.
Balls with similar numbers
Same cover type, closest RG and differential in our table:
- DV8 Double Trouble: RG 2.496, differential 0.045
- Radical Guru Oracle Pearl: RG 2.503, differential 0.044
- Radical Evil Eye Pearl: RG 2.495, differential 0.046
- Brunswick Strategy: RG 2.509, differential 0.047
Sources: Motiv product page; Storm, "Inside The Bowling Ball"; Storm, "The Coverstock"; bowling.com coverstock FAQ; USBC Equipment Specifications Manual.