Ultegra 6870 Di2

After Shimano unveiled the 11-speed "Ultegra 6800" a few weeks ago, it seemed only a matter of time before the Japanese company unveiled the electronic version. Today, just in time for the start of the Tour de France in Corsica, the time had come. The "Ultegra 6870 Di2" replaces the "Ultegra 6770 Di2" and, like the... read more