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The Shimano Ultegra 6600 10 speed Cassette Sprocket is a computer designed Hyperglide (HG) sprocket which incorporate specifically positioned shift ramps and tooth profiles for improved chain control during shifts. The Shimano Ultegra 6600 10 speed Cassette Sprocket provides fast and responsive indexed shifting as a result. Titanium cogs with aluminum carriers reduce weight and increase rigidity. The Shimano Ultegra 6600 10 speed Cassette Sprocket has Shimano-patented ramps and tooth profiles ensure effortless shifting. OneTri is one of the premier retailers for the Shimano Ultegra 6600 10 speed Cassette Sprocket.
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