Do the 12 and 13 lb Storm IQ Tour use the same core as the 14 to 16 lb?
Storm IQ Tour Bowling Ball
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Open Oct 08, 2026 - 05:03 PM
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Staff Answer
Oct 08, 2026 - 05:03 PM
No. Storm lists different numbers for the lighter weights: the 15 lb Storm IQ Tour is 2.490 RG and .029 differential, while the 13 lb is 2.590 RG and .045 differential and the 12 lb is 2.650 RG and .035 differential. Those are the numbers of a different core shape, and the lower differential means less track flare, so the 12 and 13 lb roll smoother and hook less than the 14 to 16 lb. The full table is on the product page.
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Storm IQ Tour Bowling Ball
What should I know about the IQ Tour? Symmetric C3 Centripetal Control Core for workable, forgiving control Proven R2S Solid Reactive cover at a 4000-grit finish The legendary benchmark for medium to medium-heavy oil
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