StrikeStack
Ball library
Ebonite Thunderbolt Urethane bowling ball

Ebonite

Thunderbolt Urethane

Released July 2025

Medium OilEarly HookTraction
Hook strength
5/10

Specs

Coverstock
Solid Urethane 78D Urethane Solid
Core
Thunder Bolt Symmetric
RG
2.484
Differential
0.046
Factory finish
500/1000 Siaair Micro Pad
Released
July 2025

The oil, hook and strength labels are StrikeStack's estimate from the published specs, not the manufacturer's rating. Specs provided by bowwwl.com.

Balls that react like the Thunderbolt Urethane

More from Ebonite