The original Optimum Idol marked the return of the Ikon core to the Roto Grip line. That ball introduced the Amplified Inertia (AI) outer core system to the design, and the Optimum Idol Pearl uses the...

The Stealth Hybrid is the third release to feature the Stealth nameplate for Track. The symmetrical Stealth core was previously used with a solid and pearl coverstock, and now, for the third entry...

The Columbia 300 Atlas Hybrid shares the asymmetrical Atlas core shape with the original Atlas. This medium RG (2.520″), high differential (0.054″), and higher intermediate differential (0.018″)...