SHIMANO ULTEGRA CS-6600 10SP CASSETTE

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SHIMANO ULTEGRA CS-6600 10SP CASSETTE
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Ultegra now steps into the 10 speed world with the introduction of the 6600 cassette. A wide variety of gearing options let you choose just the right combo for your ride. Shimano-patented ramps and tooth profiles ensure effortless shifting.

• Compatible with both Ultegra or Dura-Ace 10 speed cassette bodies, as well as 9 speed 105, Ultegra, Dura-Ace, and most other 9 speed cassette bodies
• Requires Shimano super-narrow 10 speed chain