Roto Grip Cosmos Polyester Spare Bowling Ball

The Roto Grip Cosmos is a polyester spare ball built for a straight, predictable path to the pins. Its polished cover minimizes lane reaction, making it useful for spare shooting and very dry conditions. The sky, admiral, and teal finish gives this practical ball a distinct look. Pin distance and top weight: Enter your preferences in the request box on this page before adding the ball to your cart. We will confirm whether your requested specifications are available. Traditional three-piece coreThe Cosmos uses a traditional three-piece core construction for stable, low-flare motion. Paired with its polyester cover, the core helps the ball stay on the line you choose instead of making a sharp move at the breakpoint. Core numbers by weight Weight RG Differential 16 lb 2.68 0.006 15 lb 2.69 0.006 14 lb 2.69 0.006 13 lb 2.71 0.005 12 lb 2.72 0.005 Specifications Coverstock: Polyester Core: Traditional three-piece Finish: 3500-grit polished Color: Sky / Admiral / Teal Flare potential: Low Recommended use: Spares and light oil Available weights: 12–16 lb