Shimano xtr di2 m9050 system displaydigital di2 e tube electronics allow the inclusion of the handlebar mounted sc m9050display unit for monitoring important di2 data gear selection battery level and shiftmode the sc m9050 not only provides data but also is the convenient interface where riders will plug in and charge the system from the handlebar an especially handyvirtue when running an internal battery the expandable e tube platform also meansthat integration with electric controlle