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Bent Derailleur hanger(14 posts)

Bent Derailleur hangergl56
Jul 4, 2003 4:37 PM
I bent my derailleur hanger yesterday. Its steel. I have a Lemond Zurich. It bent inward about 30 degrees, and back just a touch. The dropout has been "opened up" just a little bit.

Anyone had experienced getting these fixed by bending it back into place. Or will I need to send my frame back to Lemond/Trek to have a new dropout installed.


Take it back to where you bought it.MR_GRUMPY
Jul 4, 2003 4:51 PM
They should have the proper Park tool to fix it. If it's too far gone, they should be able to determine how much, or if it will cost.
A good shop with professional mechanics can bend it backTig
Jul 4, 2003 4:55 PM
Stressing the steel when straitening it will weaken it slightly, but it should survive better than aluminum. Park makes a tool just for this purpose, and in the hands of an experienced mechanic, it can be repaired in no time. If you happen to live in Houston, let me know and you can bring it to my shop.
The tool will bend it back out, but...TFerguson
Jul 4, 2003 5:44 PM
it won't do anything to bend it forward. What would you use/do to bend it forward?

You must have given it a good shot to open up the drop-out.

The tool will bend it back out, but...russw19
Jul 4, 2003 7:09 PM
Yes it will... you just have to use it right. The tool itself is nothing more than a giant leverage bar that screws into your derailleur mount on your frame. It has a calibrated scale guide on it to show you when it is aligned properly, but if you know what you are doing, you can open and close the dropouts with the tool.

If you look at how it works, it makes sense too.. you can imagine grabing the hole in the dropout that the tool screws into... if you pull down hard enough and at the right angle, it will open the dropout up some.. if you push up and at the right angle, it will close it some. If the dropout is spread open on the non-drive side, then you need a different tool, or a very fine touch and a rubber mallet. But it is fixable. I have done it plenty of times in the past 15 years.

Must be a different tool, mine spins free...TFerguson
Jul 5, 2003 6:25 AM
as it goes around measuring the distance from the rim.

That's the tool.Atombomber
Jul 5, 2003 9:49 AM
Just need to use it a bit differently.
I've actually got two different ones.Spoke Wrench
Jul 5, 2003 11:10 AM
One screws into the derailleur hanger to align that with respect to the wheel rim.

The other one looks like two big mushrooms and bolts separately onto each dropout in place of the axle. You tweak the two sides until the two mushrooms are equi-distant all over to be sure that the dropouts are parallel. If you're in doubt, it's good to use this one first.
Could be my mistake... I just realized mine is Dura-Ace tool.russw19
Jul 5, 2003 9:24 PM
Entirely possible that I am mistaken... I just looked at my tool for this and it's the Dura-Ace tool.... not the Park. But mine screws into the derailleur mount hole and you just pull it back into shape... you can pull a slightly elongated or opened dropout closed too with it.

re: Bent Derailleur hangerpale scotsman
Jul 4, 2003 5:03 PM
So... how'd it happen?
re: Bent Derailleur hangergl56
Jul 4, 2003 8:37 PM
Almost hate to admit it. I took off an extra shirt I had on and hooked it under my seat bag. I didn't secure it well enough and the shirt fell into my cassette and chain after a couple of miles. It ended up ripping the derailleur hard towards the back. I'm taking it to my local Lemond dealer in Tacoma. Hopefully, they'll be able to do as russt and tig suggest.
re: Bent Derailleur hangergl56
Jul 5, 2003 10:08 AM
Success! I took my my bent dereilleur hanger to Rainier Cycle Sports in Tacoma, Wa. (The local Lemond dealer) and they have fixed me right up. They bent the derailleur hanger back successfully. I'm particularly excited because the large Lemond dealer in Seattle (to remain nameless) just wanted to ship the frame back to the Treck/Lemond factory in Wisconsin. This would have caused me to miss next week's STP (and costed significantly more). So major kudos to Rainier Cycle Sports in Tacoma.
re: Bent Derailleur hangerrussw19
Jul 5, 2003 9:31 PM
Congrats on getting it fixed! I can't believe some shop wanted to send it back to Wisconsin on you. It's about a 5 to 10 minute job and not hard if you have the tool. And if they are a large shop, they should carry that tool.

What did the small shop charge you? Less than $15? I would guess so. It's not a big deal, but be sure you are careful with it from now on... it's like a paperclip, once you bend it, it's considerably weaker now. But there is no reason that I can see that someone wanted to send it back to the factory for this.
re: Bent Derailleur hangergl56
Jul 6, 2003 3:42 PM
Your right it was about $15 to fix the bent hanger. I did need to by a new derailleur however since I broke the cage in two and they didn't have replacement part. I also ended up buyin a new chain as I mangled 3 or 4 links as well. Total cost was $116. I felt very good paying this as I was back on the road in 1 day. Not the 6-8 weeks and $600 to $900 the large Seattle-based Trek/Lemond dealer wanted to hold me up for.