New for Dura-Ace 9070 is programmable multi-shift. This means that if you hold the button down, the rear derailleur will keep changing until it gets to the end of the cassette, reaches a pre-set ...

The revamped Shimano Dura-Ace 9070 group is a bit lighter than before but the big news is its greatly enhanced customization potential (Image credit: Ben Delaney / Future Publishing) ...