Photo and specs courtesy of Motiv. Reproduced with credit to the maker.
How it moves
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.
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
Atomix
Reactive solid
Core
Sigma
Symmetric
Factory finish
2000 Wet Sand
Color
Not listed
Released
2011-09-02
USBC
Approved 2011-08-01
Weights and specs
Weight
RG
Differential
Int. diff
12 lb
2.63
0.024
—
13 lb
2.56
0.034
—
14 lb
2.50
0.044
—
15 lb
2.47
0.047
—
16 lb
2.48
0.041
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
2000 Wet Sand. Sanded then smoothed (1500 to 3000 grit): enough tooth for oil, enough gloss to get down the lane. Most box finishes. Surface changes over games, and a pro shop can take any ball either way with a pad.
Reviews on YouTube
Tenpin Doctors-JR Raymond · 2026 · Motiv's new "SIGMA Tour Pearl" Bowling Ball Review – #bowlingballreviews #motivbowling #bowlingBowlerX.com · 2026 · Motiv Sigma Tour Pearl Bowling Ball | BowlerX Full ReviewMotiv DVE · 2026 · Motiv Sigma Tour Pearl bowling ball review with DVE
Picked by search for this ball; videos and thumbnails belong to their creators and play on YouTube.
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