Shimano Ultegra R8000 vs Dura-Ace 9100: What are the main differences?

The new Shimano Ultegra groupsets look almost identical to Shimano Dura-Ace, but there are some subtle differences – here's what you need to know

The new Shimano Ultegra groupsets look almost identical to Shimano Dura-Ace, but there are some subtle differences – here's what you need to know