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Roto Grip Defiant bowling ball

Roto Grip

Defiant

Released January 2012

Heavy OilEarly HookContinuous
Hook strength
9/10

Specs

Coverstock
MicroBite Solid Solid Reactive
Core
Paragon Asymmetric
RG
2.490
Differential
0.054
Intermediate diff (mass bias)
0.017
Factory finish
3000 Abralon
Released
January 2012

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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