Photo and specs courtesy of Ebonite. 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). The maker publishes no number for this ball, so this is estimated from the coverstock, core, finish, and differential.
Coverstock
Super Track Plus Reactive Resin
Reactive solid
Core
Full-sized pancake with offset high-tech flip block
Symmetric
Factory finish
Not listed
Color
Green / Purple / Navy
Released
Not listed
USBC
Approved 2002-12-01
Weights and specs
Weight
RG
Differential
Int. diff
10 lb
2.77
0.040
—
11 lb
2.75
0.038
—
12 lb
2.73
0.036
—
13 lb
2.70
0.034
—
14 lb
2.67
0.045
—
15 lb
2.65
0.040
—
16 lb
2.64
0.034
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
Coarse surfaces grip through oil and hook early; fine or polished surfaces skid longer and hook later. Surface changes over games, and a pro shop can take any ball either way with a pad.
Reviews on YouTube
Ripvanrevs · 2024 · 600 challenge with a 56 year old rubber bowling ball (Ebonite Tornado)Gamester Life · 2024 · Old Ebonite Tornadoliam cambridge · 2013 · Jack Sparkes Ebonite Tornado Practice
Picked by search for this ball; videos and thumbnails belong to their creators and play on YouTube.
Balls like this
Same coverstock and core type; the closest company for this ball in a bag.