Shimano ultegra 6701 10 speed chainspirit of the sport newultegrais born to realize a smooth and aggressive road sport inheriting the performance of a new generation super narrow lightweight 10 speed directional chain for optimum cassette and chainset interaction and maximum power transferfeatures chain uses a directional design with specifically shaped inner and outer plates to optimise shifting over the chainset and cassette outer plate design has been developed to reduce the chance of c