Adjusting and indexing your gears is an important part of bike maintenance to help make shifting as smooth as possible. If you're using Shimano’s latest Dura-Ace R9200 or Ultegra R8100 Di2 groupsets, this is the video for you! It’ll be a little different to previous generations of Di2 but indexing gears is a fairly simple process so hopefully this guide will help nonetheless! Subscribe to GCN for cycling as you have never seen it before! Live racing, shows & cycling adventure films: https://gcn.