Photo and specs courtesy of Roto Grip. Reproduced with credit to the maker.
How it moves
Hockey-stick turn (asymmetric 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
R_U-R1 Pearl
Reactive pearl
Core
R_RST AI
Asymmetric
Factory finish
R_Power Edge
Color
Space Blue/Deep Purple
Released
2025-09-19
Sold
Sold in the US
USBC
Approved 2025-08-05
Weights and specs
Weight
RG
Differential
Int. diff
16 lb
2.51
0.051
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
R_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.
