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_VR1 Hybrid
Reactive hybrid
Core
R_Rondure_TourX
Asymmetric
Factory finish
R_4000 Grit
Color
Smoke/Velvet/Ink
Released
2026-03-13
Sold
Sold in the US
USBC
Approved 2026-01-20
Weights and specs
Weight
RG
Differential
Int. diff
16 lb
2.48
0.032
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
R_4000 Grit. 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.
Reviews on YouTube
Storm Bowling Products Inc. · 2026 · We Tested Every Gremlin... Wicked Gremlin vs Gremlin Tour X vs Gremlin | Roto Grip Bowlingbowlingballcom · 2026 · bowlingball.com Roto Grip Gremlin Tour-X Bowling Ball Reaction Video ReviewVirtue Bowling Supply · 2026 · RotoGrip Gremlin Tour X| High & Low Rev Comparisons Review
Picked by search for this ball; videos and thumbnails belong to their creators and play on YouTube.
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Same coverstock and core type; the closest company for this ball in a bag.
