Roto Grip RST X-1 Bowling Ball 16 The cover creates more friction

The cover creates more friction and the core gives a strong and stable reaction all the way down the lane

Hook Potential: Medium

to the base and wheels

Coverstock: S84 Response Pearl

FCC Rating: Total- 27

Roto Grip RST X-1 Bowling Ball 16 The cover creates more frictionRoto Grip RST X 1 Bowling Ball A new spin on an old classic The RST X 1 from Roto Grip is here. Roto Grip took inspiration from their 1950's roots to produce a ball with today's technology that can stand the test of time. The newly designed RST asymmetric core will produce a clean, consistent reaction and smooth continuation down lane. Wrapped around the outside, the MicroTrax Hybrid reactive coverstock finished at 3000 grit Abralon will handle medium