STORM ION MAX PEARL COBALT/AQUA/IVORY
February 6, 2026STORM BIONIC HYBRID BLUE/MAGENTA/DEEP PURPLE
February 6, 2026
STORM CONCEPT PEARL TEAL/IMPERIAL BLUE
$263.95
mrp $189.95
The SPI LAB Series introduces the Concept, our next innovative release that reverses the narrative on how core/cover
combinations are developed for challenging patterns. The ARC Cover has the highest coefficient of friction (COF) values and
is right at the USBC limit on oil absorption time. With the Concept the coverstock acts as both the engine and the tires,
while the Radius Weight Block behaves as the traction control – making sure the ball stays on-line to find the pocket. Since
the coverstock is so strong and the weight block is very conservative in terms of RG/Diff, the Concept never wants to “lock
up” or go forward down the lane. Even though the diff is very low, the cover technology ensures the ball does not carry oil
down the lane as urethane is known to do. The cover forces the ball to continue hooking through the pins. The Concept, in
the 14 – 16 pound weights, is a two-piece ball with a thick resin shell. The thicker shell raises the coefficient of restitution
(COR) which has been shown to create more lively pin action.
The Concept redefines how core and cover combinations tackle challenging lane conditions, delivering a level of control and consistency that reactive balls alone often can’t achieve. Its ARC™ Pearl Coverstock acts as both the engine and the tires, gripping the lane to create continuous, predictable motion through the pins while the Radius Weight Block keeps the ball on line without locking up. Designed for situations where bowlers traditionally reach for urethane, the Concept shines on short patterns or flat, demanding conditions—anywhere you need a smooth, controlled reaction rather than a sharp backend hook. The Concept maintains consistent motion across the lane, carrying through the pins for strong, lively action. Designed as a two-piece ball with a thick resin shell, the 14-16lbs combine the smooth, predictable qualities of urethane with the versatility and driving power bowlers expect from a modern reactive ball.
Features
ARC™ Pearl Coverstock:This advanced pearl formulation is designed to dig into the oil more effectively than traditional solids. It provides a predictable, stable footprint on the lane, ensuring you don’t “over-wall” on fresh or tricky transitions
Radius™ Weight Block: At the heart of the 14-16 lb models is a core tuned for low flare and high stability. It keeps the ball on its intended path without “locking up” or jumping prematurely, delivering a true, controlled arc.
Two-Piece Construction: Designed with a thick-shell resin, the Concept offers a “heavy” hit through the pocket, providing the lively pin action that standard urethane often lacks.
Ball Specifications
COLOR
Teal/Imperial Blue
CORE
Radius
CORE TYPE
Symmetrical
COVERSTOCK
ARC Pearl Reactive
COVERSTOCK TYPE
Pearl Reactive
FACTORY FINISH
1000 Grit Abralon
FRAGRANCE
Blueberry Fritter
WEIGHTS
12-16 lbs.
RADIUS OF GYRATION (RG)
2.61 (15lb.)
DIFFERENTIAL (DIFF)
0.02 (15lb.)
PERFORMANCE
High Performance
LANE CONDITION
Medium – Heavy Oil
REACTION
Smooth, urethane-style control
WARRANTY
Limited 1-Year Warranty from Purchase Date
| Weight | 12lbs, 13lbs, 14lbs, 15lbs, 16lbs |
|---|---|
| Manufacturer | STORM PRODUCTS, INC. |

