Sometimes all you need is a fresh coat of paint. With revised graphics to match SRAM RED e Tap components, the Powerdome X is still the most advanced cassette ever made. It's super light, deadly silent, & 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 Stealth Ring elastomer to reduce vibration & noise. Cutouts on the rear cog further reduce weight & add stiffness. It's the final piece in the drivetrain puzzle, & paired with the new SRAM Red rear derailleur, it delivers ultra-fast, ultra-quiet shifts that will always put you in the right gear. Key
Features: Hollow steel dome makes for the stiffest gear cluster ever at the lightest weight. Heat-treated, high-grade tool steel provide superlative durability & a beautiful finish. Stealth Ring™ elastomers & advanced tooth profiles eliminate vibration & noise for a smooth, silent ride. Aluminum cog: lighter, stiffer, stronger due to the design, material & production process. Gear ratio: 11-25: 11, 12, 13, 14, 15, 16, 17, 19, 21, 23, 25 11-26: 11, 12, 13, 14, 15, 16, 17, 19, 21, 23, 26 11-28: 11, 12, 13, 14, 15, 16, 17, 19, 22, 25, 28 Wi F Li 11-32 cassette option: 11-32: 11, 12, 13, 14, 15, 17, 19, 22, 25, 28, 32 For more information on how to keep your bike running smoothly, click here to see PBK's expert advice on taking care of your chains & cassettes.