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
MOTIVat-R
Reactive solid
Core
Thrust
Symmetric
Factory finish
800 Wet Sand
Color
Not listed
Released
2009-08-01
USBC
Approved 2009-08-01
Weights and specs
Weight
RG
Differential
Int. diff
12 lb
2.66
0.031
—
13 lb
2.61
0.042
—
14 lb
2.57
0.048
—
15 lb
2.54
0.052
—
16 lb
2.53
0.048
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
800 Wet Sand. Bites through heavy oil, so the ball reads the lane early and hooks sooner. Sanded balls (500 to 1000 grit) live here. Surface changes over games, and a pro shop can take any ball either way with a pad.
