With graphics to match SRAM RED eTap components, the PowerdomeX is super light, silent, and delivers an undeniable performance advantage. The nine cogs in the cog cluster are machined from a single block of high grade tool steel, increasing stiffness while weighing even less than a titanium cassette. Between each cog is a StealthRing elastomer to reduce vibration and noise. Cutouts on the rear cog further reduce weight and add stiffness. It's the final piece in the drivetrain puzzle, and paired with a SRAM RED rear derailleur, it delivers ultra-fast, ultra-quiet shifts that will always put you in the right gear.Features:- Speed 11s- Gearing: 11-25t- COG Finish: Silver- Technology: XG

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