Chris McCormack dropped out of this year's Ironman World Championships because of a snapped cable that would not allow him to shift gears.
He should have had these new electronic Dura-Ace shifters that were featured for the first time at the Kona race.
All you have to do is push a button and the bike shifts...as if by magic. But its really not magic, just a bit of battery powered push and pull.
Lennard Zinn filed and interesting series of photos of this new system for velow news with brief explanations on how the new new electronic Dura-Ace shifters really work.
According to Zinn, "it takes only a tiny finger movement to shift. The top button on each
side shifts to a larger chainring or cog, and the lower button shifts
to a smaller chainring or cog. But you have another choice of where to
shift from, so you don’t have to reach out here to shift while grabbing
the base bars for a turn or a climb.
And since you can shift under load, you don’t have to anticipate in
advance what gears you’ll need on a climb; just shift as your legs feel
the need"
Take a look for yourself HERE.
