CS-7900 Dura-ace Cassette 10sp 12-25T

Featuring four titanium cogs, the Dura-Ace 7900 cassette offers superior 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
• Rigid aluminum carrier
• Lightweight & rigid
• Four titanium sprockets
• Lightweight. 163 Grams