Dura Ace 7900 Cassette Featuring four titanium cogs, the new Dura-Ace 7900 cogset has further improved shifting quality by creating a more rigid aluminum carrier unit along with a re-engineered tooth profile. Shimano also successfully reduced the weight of the rear wheel assembly by 10 grams.
-Revised gear sprocket design
-Precise & reliable shifting
-8 cassette combinations to accommodate more cyclists
-Rigid aluminum carrier
-Lightweight & rigid
-Four titanium sprockets
-Lightweight
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