Photo and specs courtesy of Roto Grip, from the maker's archive. 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
eTrax-S20
Reactive solid
Core
Rondure
Asymmetric
Factory finish
3000 Abralon
Color
Not listed
Released
2020-09-04
USBC
Approved 2020-07-28
Weights and specs
Weight
RG
Differential
Int. diff
12 lb
2.59
0.029
0.008
13 lb
2.57
0.032
0.010
14 lb
2.53
0.052
0.009
15 lb
2.49
0.052
0.011
16 lb
2.48
0.050
0.012
Surface
Coarse grit
Coarse and fine
Fine grit or polish
3000 Abralon. Sanded then smoothed (1500 to 3000 grit): enough tooth for oil, enough gloss to get down the lane. Most box finishes. Surface changes over games, and a pro shop can take any ball either way with a pad.
Reviews on YouTube
Joshua Tajiri Bowling · 2021 · Roto Grip Rubicon UC3 Ball Review HD- Joshua TajiriCreating the Difference · 2021 · REMEMBER THIS IMPORTANT TIP WHEN BUILDING A BOWLING ARSENAL | Roto Grip Rubicon UC2 TruBall Reviewsbowlingballcom · 2021 · bowlingball.com Roto Grip Rubicon UC2 Bowling Ball Reaction Video Review
Picked by search for this ball; videos and thumbnails belong to their creators and play on YouTube.
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