Shimano ultegra 6700 2x10sp braze on front mechthis completely redesigned ultegra front derailleur is for use with ultegra st6700 or 105 5700 shifters only for optimum shifting performance it features a wide inner link for increased rigidity that takes front shifting performance to a new level especially under heavy load features 10 less spring tension provides a feather light down shift and smooth shifter stroke wide inner link increased rigidity and takes front shifting performance to a ne