Image Vital MTB tested Shimano's electronic XTR Di2 drivetrain. Read the long term review here. Credit Brandon Turman Related: Shimano Use keyboard arrow keys to browse the gallery. Swipe to browse the gallery. Prev Next 1 of 35Autoplay Autoplay SlowMedFast Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter bturman 6/29/2016 11:14am Share to Facebook Facebook Facebook Share to Twitter Twitter Twitter