* 12 speed Super Record shifter/brake levers* Unidirectional carbon lever blade* Improved ergonomics: more natural thumb lever angle, deeper hook at the top and outwards slant of the brake lever for a better grip from the drops* Immediate shifting engagement leads to faster shifts than the previous generation, especially at the front derailleur* Ultra-Shift mechanism allows multi-shifts in both directions (4 up, 5 down)* Built in reach adjustment for an optimal fit regardless of hand size* Weight: 339g (pair)