Roto Grip Cosmos

Roto Grip Cosmos bowling ball

Roto Grip · EP line

The Roto Grip Cosmos is a symmetrical bowling ball from Roto Grip's EP line, released in July 2026. It has the Clear Poly coverstock and the 3 Piece weight block, finished at 3500 Grit Polished out of the box. At 15 lb its RG is 2.69, with a differential of 0.006.

Among the 65 balls here with a 15 lb version, its RG is high, so it gets down the lane before it revs up, and its differential is low, for less flare and a steadier motion.

Specs

Details

Coverstock
Clear Poly
Weight block
3 Piece
Core
Light Weight
Symmetry
Symmetrical
Factory finish
3500 Grit Polished
Durometer
82-84
Flare potential
Low
Color
Sky/Admiral/Teal
Release date
07/17/26

Tech specs

WeightRGDiffPSA
12 lb2.720.005—
13 lb2.710.005—
14 lb2.690.006—
15 lb2.690.006—
16 lb2.680.006—

Balls most like it

The Roto Grip Cosmos has no reaction ratings, so there's nothing to match it on.

Related balls

The rest of Roto Grip's EP line.