Storm Gravity Evolve Bowling Ball

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MSRP: $289.95
— You save $115.00
Frequently bought together:


Storm Gravity Evolve Bowling Ball

  • Color: Gunmetal/Fire/Crimson
  • Coverstock: SPEC Solid Reactive
  • Weight Block: Shape-Lock HD Core 
  • Factory Finish: 2000 grit Abralon
  • Flare Potential: High
  • Radius of Gyration (RG): 16lbs - 2.48; 15lbs - 2.48; 14lbs - 2.53
  • Differential (Diff): 16lbs - 0.048; 15lbs - 0.052; 14lbs - 0.050
  • Intermediate Differential (Diff): 16lbs - 0.019; 15lbs - 0.020; 14lbs - 0.017
  • Fragrance: Orange Ambrosia

Additional product information:


Before any ball earns the right to be inscribed with the Storm insignia, it has to pass through a rigid on-lane performance test. This has been the case since the first Storm ball was poured over two decades ago. The process has been refined since, of course, to a level of commitment that is worthy of your passion and enthusiasm for the sport we all know and love. One could say, it has “evolved”.


As always, a new Storm ball is only introduced when it satisfies a real performance need. Steady, unbroken improvement is a core value at Storm.

The game has changed and so should we. Stepping back, we realized amateurs and professionals around the world have been clamoring for a heavy rolling, fast-migrating core akin to one of the most famous of all-time: The Shape-Lock HD Core. This shape can power through just about anything. “HD” is short for high density, which lowers the RG and raises the differential of the weight block. A higher differential translates to more flare potential, so every time the ball makes a rotation it exposes a fresh portion of coverstock material to the oil.

Fresh coverstock is important, but the type of coverstock is equally as vital. SPEC has been highly well received since its inception on the Crux™ Prime. It “sticks” to the lane, almost like Velcro®. After further testing, the Gravity Evolve not only grabs the lane differently than its Reactor™ or NRG™ based covers, but things want to grab it in return i.e., oil. Compared to R2S™, SPEC’s flare rings, on average, we 5.7% wider at the exact same surface preparation. This could also be in part because the oil absorption rates for SPEC are five times slower than our next leading coverstock. Expect heavy roll with no shortage of higher scores and more strikes.

Storm – We are “The Bowler’s Company™”

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Additional Information

Lane Condition:
Factory Finish:
Sanded 2000 Abralon
Core Type:
Solid Reactive
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3 Reviews

  • 5
    Gravity Evolve

    Posted by Richard Gilbert on Jan 13th 2020

    I love the ball and as always appreciate the quick shipping

  • 4
    Great ball

    Posted by Unknown on Nov 26th 2019

    great ball

  • 5
    Great addition

    Posted by Luke Krepsky on Nov 8th 2019

    A very strong ball but doesn’t break immediately if it hits dry. Layout for max flare and it’s definitely over 6 inches. Hits hard a carries very well

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