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Ebonite Tornado

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

How it moves

Foul lineArrows · 15 ft43 ft · board 6.55.7° 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.
Ebonite

Tornado

Discontinued
Hook potential7.5 (est.)7.5 of 10, estimated

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

WeightRGDifferentialInt. diff
10 lb2.770.040—
11 lb2.750.038—
12 lb2.730.036—
13 lb2.700.034—
14 lb2.670.045—
15 lb2.650.040—
16 lb2.640.034—

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine 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 Tornado
liam 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.