Description Now with plenty of gearing options, the new Dura Ace cassette is perfect for a variety of riders and applications. And, it's new alloy carrier saves weight and increases stiffness over previous models.
Works best when used with the 7900 series chain but it also compatible with older Shimano 10 speed chains. All sizes are back compatible and work with the RD-7800 or RD-7900 rear derailleur except for the 11/28 model which requires greater chainwrap capacity and the use of the RD-7900.
11/21 Tooth (11, 12, 13, 14, 15, 16, 17, 18, 19, 21); 155 grams
11/23 Tooth (11, 12, 13, 14, 15, 16, 17, 19, 21, 23); 161 grams
11/25 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 23, 25); 178 grams
11/27 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 24, 27); 182 grams
11/28 Tooth (11, 12, 13, 14, 15, 17, 19, 21, 24, 28); 185 grams
12/23 Tooth (12, 13, 14, 15, 16, 17, 18, 19, 21, 23); 178 grams
12/25 Tooth (12, 13, 14, 15, 16, 17, 19, 21, 23, 25); 185 grams
12/27 Tooth (12, 13, 14, 15, 16, 17, 19, 21, 24, 27); 190 grams
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