Shimano ultegra 6800 2x11sp braze on front mechthe ultegra 6800 front mech delivers both a shorter stroke at the lever and reduced effort with a revised actuation ratio in combination with st 6800 and polymer coated cables it features a newly designed pull arm for more direct and easy shifting this braze on version offers more stable contact to the frame features completely redesigned ultegra front derailleur for use with ultegra st6800 shifters only for optimum shifting performance long pu