The newly developed Ultegra front derailleur offers with its new tension arm a shorter actuating travel of the lever and thus a more direct and barge switching. Furthermore, the force is uniform over the entire region.
Thus also the transmission ratio at Shiftbrakelever ST-6800 could be changed. The front derailleur is adjusted by the modified chain guide, also to the larger field of translation Ultegra crank.
Ultegra front derailleur FD-6800 is only compatible with switching levers of the new 11-speed groups.
Finish: Mounting by clamp or braze
Compatibility Setting: seat tube diameter 28.6 / 31.8 / 34.9mm
Compatibility Shifter: 11 speed Shimano Dual Pull ST-R9100, R9120 ST, ST-9000, ST-9001, ST-6800, ST-5800
chain line: 43.5 mm
Chainstay angle: 61-66
chainring: 46-53 teeth
Capacity: 2-fold with 16 teeth difference between the largest and smallest leaf
compatible chains: HG-11-EV / HG-X11