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Roto Grip / Cores / Defiant LRG

Defiant LRG

Core · 1 ball · all Roto Grip cores

asymmetric

Discontinued

Often still available from retailers and pro shops.

Roto Grip GEM

GEM 15lb · RG 2.47 · D 0.053 ✓ USBC ApprovedDiscontinued

CarryDown

The current bowling ball catalog — specs, legality, and where to buy. Built for league bowlers.

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