Description
The Sram Powerdome in the most advance cassette ever made. Its super light, deadly silent and delivers an undeniable performance advantage. The eight cogs in the middle are machined from a single block of high grade tool steel, increasing stiffness while weighing even less than a titanium cassette. Between each cog in the block there is a StealthRing elastomer to reduce vibration and noice. Cutouts on the rear cog further reduce weight and add stiffness.
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