Shimano Dura-Ace Di2 SM-AD91 Braze On Clamp Adaptor Dura-ace Di2 moves to the next generation. It has been tested in competition by pro teams in all conditions.FeaturesShimano Di2 ComponentConverts frame with no braze-on mount to accept braze-on DI2 front derailleurClamp fits neatly around seat... Sale Price $17.99
