Ultra Shift is a new style of cog tooth synchronization.
The enhanced shifting precision reduces stress and increases the life of your chain.
Select teeth on each cog have a sharkfin-like shape.
This shape serves as a gateway for upshifts.
The Ultra Shift cog design works with the 11 speed Ergopower shift levers to provide quicker shifts with less effort.
+ Cog Material: chrome-plated steel, titanium
+ Hub Type: Campagnolo
+ Recommended Use: road racing, completing your 11 speed groupset
+ 6 Titanium cogs
+ Includes aluminum lockring
11-23 is 181 grams
11-25 is 185 grams
12-25 is 194 grams
12-27 is 206 grams
12-29 is 220 grams