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Tyler Hamilton's Derailleur Problems(4 posts)

Tyler Hamilton's Derailleur ProblemsMikeC
Jul 23, 2001 8:35 AM
Tyler Hamilton wrote in his VeloNews diary: "For the second time, the derailer on my climbing broke. There's nothing you can do in a situation like this except stop. It's not like having a flat where you can keep rolling."
Anybody know anything about this? I'm surprised to hear about DA gear "breaking" on a climb...particularly twice!
does he say what part broke?jw25
Jul 23, 2001 8:54 AM
I have to assume it was the rear derailleur, since the front is pretty simple.
The rear, though, has quite a few parts, any one of which failing would stop the entire drivetrain. Imagine a pulley bolt coming out, the tension spring breaking/coming loose, a limit screw backing out, the cable fixing bolt coming loose/shearing off....
Plus, consider that Dura-Ace has been lightened about as much as possible (perhaps too much?) and the Pro's probably stress their components more than we mere mortals can hope to.
That's not to imply that Dura-Ace is bad, just that parts break.
What we don't know...TJeanloz
Jul 23, 2001 9:12 AM
Tyler's a bit of a tech freak, and I highly doubt that the rear derailluer on his 'climbing' bike was stock Dura-Ace. I can almost garauntee that he has some fancy, drilled out aluminum body, with a drilled out magnesium spring etc. etc. All of which make it a bit lighter but not quite as durable as possible.
That sounds pretty logical to me. (nm)Jim Burton
Jul 23, 2001 11:42 AM