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KR Strikeforce Rise Pearl

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

How it moves

Foul lineArrows · 15 ft47 ft · board 104.9° 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.
KR Strikeforce

Rise Pearl

Hook potential5 (est.)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
Thrust Pearl
Reactive pearl
Core
Launch
Symmetric
Factory finish
2000 Abralon, Polish
Color
Not listed
Released
2025-05-01
USBC
Approved

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.670.023—
13 lb2.630.034—
14 lb2.600.037—
15 lb2.530.047—
16 lb2.520.050—

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
2000 Abralon, Polish. Skims the oil and saves its energy for the dry part of the lane: longer skid, later and sharper hook. Polished and pearl balls. 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.