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Light, stiff and smooth. It all comes together in one outstanding package with SRAM's OG-1090 10-Speed Cassette. Unlike traditional cassettes made by combining individual cogs, the entire OG-1090 is precision machined from a single steel block, heat treated and capped with a premium nickel finish, resulting in a revolutionary cassette that's incredibly stiff, light and durable. Plus, SRAM's OpenGlide Technology removes additional material from the cogs for ultra-smooth shifts every time, even under load.

Features:

  • One-piece PowerDome>™ .
  • OpenGlide™ design.
  • Lightweight, smooth, precise-shifting.
  • Better power transfer.
  • Black backing plate.

Specifications:

  • Speed (CS) - 10s
  • Gearing - 11-23t
  • Cog finish (Cassette) - Silver
  • Technology (Cassette) - OG
  • Cog Sizes - n/a