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Computer designed Hyperglide HG sprockets incorporate specifically positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result. A superior surface treatment of CS 7800 has been applied to the titanium sporockets which increased durability by approximately 30%. Titanium, alloy carrier mounted large sprockets 9 speed freehub compatible Use with Super Narrow Chain for 10 speed Combinations 11 12 13 14 15 16 17 18 19 21T 11 12 13 14 15 16 17 19 21 23T 12 13 14 15 16 17 18 19 20 21T 12 13 14 15 16 17 18 19 21 23T 12 13 14 15 16 17 19 21 23 25T 12 13 14 15 16 17 19 21 24 27T Weight 173g 11 23T
Price:
$ 169.95
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