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Motiv Sigma (Tour) Pearl

Photo and specs courtesy of Motiv. Reproduced with credit to the maker.

How it moves

Foul lineArrows · 15 ft50 ft · board 78.2° entry
Arcing turn (symmetric core). Dotted is skid, then the turn, then the roll into the pocket. Estimated from the coverstock, finish, core, and differential for a right-handed bowler with medium revs on a house shot. Lane conditions, speed, and layout move all of this.
Motiv

Sigma (Tour) Pearl

Hook potential77 of 10, maker rating

How much the ball wants to hook, 1 (straight, a spare ball) to 10 (the strongest oil-eaters). Normalized from the maker's own scale.

Coverstock
Atomic Propulsion Pearl Reactive
Reactive pearl
Core
Sigma Symmetric
Symmetric
Factory finish
5000 Grit LSS
Color
Not listed
Released
2026-07-08
USBC
Approved 2026-06-09

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.630.024
13 lb2.570.032
14 lb2.510.040
15 lb2.470.047
16 lb2.460.044