Photo and specs courtesy of Storm. 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.

Storm

Hy-Road

Hook potential8 (est.)8 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: R2S Hybrid; Reactive hybrid
Core: Inverted Fe2; Symmetric
Factory finish: Power Edge
Color: Black/Ultramarine Blue
Released: 2008-11-18
USBC: Approved 2008-10-01

Weights and specs

Weight	RG	Differential	Int. diff
16 lb	2.52	0.058	—

Surface

Coarse grit

Coarse and fine

Fine grit or polish

Power Edge. 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.

Balls like this

Same coverstock and core type; the closest company for this ball in a bag.