Image Vital MTB tested Shimano's electronic XTR Di2 drivetrain. Read the long term review here. Credit Colin Meagher Related: Shimano Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 27 of 35Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter bturman 6/29/2016 11:13am Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter