Ultegra 6800 hydraulic disc groupset the ultegra 6800 series is pro proven as it is a direct trickle down from the shimano dura ace groupset this 11 speed groupset sits one below dura ace and has many of the same features but at a much more affordable price the brakes are dual pivot resulting in much stronger braking performance and ultimately more confidence the gearing available in 2x11 but with a wide range 11 32t cassette option on the rear is very smooth and the hood combined with