Do the 12 and 13 lb 900 Global Portal use the same core as the 14 to 16 lb?
900 Global Portal Bowling Ball
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Open Oct 08, 2026 - 04:45 PM
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Staff Answer
Oct 08, 2026 - 04:45 PM
No. 900 Global lists different numbers for the lighter weights: the 15 lb 900 Global Portal is 2.590 RG and .050 differential, while the 13 lb is 2.560 RG and .034 differential and the 12 lb is 2.580 RG and .031 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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900 Global Portal Bowling Ball
What should I know about the Portal? • Asymmetric Conduit A.I. Core: high 2.59 RG clears the front, .050 differential unloads down lane • Stronger RB 92 Solid Reactive cover at a Power Edge finish for optimal traction • One of the sharpest backends 900 Global has ever built, for medium-heavy to heav...
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