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. Powerdome Inspired from the combination of OG-1090 and the XG-1099 cassettes, the heat-treated high-grade tool steel features hollow construction with CNC-machined cogs and rear cut-outs for reduced weight and added stiffness. The...
Best Price: £139.99 from Merlin Cycles