Campagnolo Record Titanium 10 speed Ultra Drive #CSK00 RE10T cassette sprocket 23C 26C #10S 36CT with 23 26 teeth hti 13 15 17 19 22 13 15 17 19 22 55 cm (innerdiameter) This Campagnolo double sprocket completly mad of titanium is to be used within a 13 26 10 speed cassette Campagnolo 10 speed Ultra Drive
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