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Roto Grip Ultra Sonic bowling ball

Roto Grip

Ultra Sonic

Released December 2004

Light OilLate HookContinuous
Hook strength
2/10

Specs

Coverstock
Sure Grip II Pearl Pearl Reactive
Core
X-1 Symmetric
RG
2.610
Differential
0.035
Factory finish
1500 Polished
Released
December 2004

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

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