Hammer Black Widow Spare+
Hammer Black Widow Spare+ bowling ball
Hammer Gas Mask core (16-14 lb)
Hammer Black Widow Spare+ core (13-12 lb)
Hammer Black Widow Spare+ core (11-10 lb)
Light Oil Entry / Spare Poly Line Plastic Performance

Hammer Black Widow Spare+

Video review coming soon

What should I know about the Black Widow Spare+? •Iconic asymmetric Gas Mask core (16-14 lb) under a polyester cover, weights 10 to 16 lb •Straight, accurate spare shooting plus real motion on extremely dry lanes and short patterns •White Diamond pearl finish with eye-catching sparkle, two-year warranty

Arsenal Position
Heavy Dry
$149.95
Free shipping • 60-day returns • Striking Rewards eligible
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Coverstock
Plastic
Core
Asymmetric
RG
2.480
Differential
.058
Weights
10LB, 11LB, 12LB, 13LB, 14LB, 15LB, 16LB
Finish
500, 1000, 2000 Siaair / Factory Polish

What the Specs Tell Us

The Polyester (Plastic) coverstock provides predictable, straight-line performance. With an RG of 2.480 and a .058 differential, this core revs up earlier for a stronger midlane read with strong flare potential that creates an aggressive ball motion. Engineered for light conditions where control and length through the heads are essential.

Technical Specifications

Full Specifications
Brand Hammer
Ball Name Black Widow Spare+
Coverstock Polyester (Plastic)
Coverstock Type Plastic
Core Name Hammer Gas Mask Core
Core Type Asymmetric
RG (15 lb) 2.480
Differential .058
Mass Bias .013
Factory Finish 500, 1000, 2000 Siaair / Factory Polish
Lane Condition Light Oil
Available Weights 10LB, 11LB, 12LB, 13LB, 14LB, 15LB, 16LB
Color White
Release Date September 2026
SKU 60-108769

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