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Old 08-15-09, 09:33 AM   #1
pstock
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replacing front Deore derailleur with unusual clamp?

as a result of an accident, I have broken my girlfriends front derailleur cage on her very precious Specialized.
I thought it would be a simple matter of swapping the front Deore derailleur.
Surprise. I've never seen a derailleur mount like this before. Instead of being clamp on or a bolt on flange, it seems to affix to a post and a bracket that goes around the bottom bracket.

Can anyone advise me as to:
a) what kind of mount or derailleur is this?
b) is there anyway to just replace the cage?
c) what would I search for if I were to look for a replacement?
(and d) why in goodness name did any manufacturer allow something so non-standard on their bike?)


thanks

Peter
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File Type: jpg spec deore der 1.jpg (63.6 KB, 22 views)
File Type: jpg spec deore der 2.jpg (82.4 KB, 14 views)
File Type: jpg spec deore der cage.jpg (94.3 KB, 16 views)
File Type: jpg spec der.jpg (92.4 KB, 15 views)
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Old 08-15-09, 11:48 AM   #2
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You don't just replace a front derailleur cage. You replace the whole dang derailleur. No matter what type. I don't know where you could just buy a cage.



What you've got there is called an "E-Type" front derailleur mount.

You remove the BB from the drive side, slide the derailleur off, and replace.
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Old 08-15-09, 11:55 AM   #3
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need to see pix of the whole bike...

that is some interesting paint she has going on there...
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Old 08-15-09, 02:14 PM   #4
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Presenting "Lowki"

When Julie bought this bike, some years back, she thought the original red black and white paintjob looked like a Coors Light beer can. and that was not a good thing.
so, being the frustrated artist she is, she broke out the paints.

http://picasaweb.google.com/TOcycles/Lowki#

Peter
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File Type: jpg DSCN8150.jpg (86.9 KB, 13 views)
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Old 08-15-09, 02:33 PM   #5
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thanx for the pix!

doesn't look like a stinky beer can any more!

I like! good job!
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Old 08-16-09, 12:25 AM   #6
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Just a FYI after you get the ORG one off, you should be able to install a regular clamp on model. You just need to find one that will fit the seat tube, or get one that comes with spacers. I had one of those on my Old Fisher Wahoo, ended up upgrading to a clamp-on, I was told I probably shes a 1/4 lb by ding so.
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Old 08-16-09, 12:27 AM   #7
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Now after seeing more pics of the rig. I am no bike tech, but you may have to go back with the same type. A clamp on may not work with that frame. But again I could be wrong.
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Old 08-16-09, 03:18 AM   #8
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looks like you wouldn't have to take BB apart...
that 'bracket' looks like a 2 piece... might have to buy the whole thing... but looks like (in pic #1) that you can unbolt the bracket from the top part (derailleur) and slip it right back on...
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Old 08-16-09, 06:22 PM   #9
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leave the bracket

this appears to be correct, as I have just unbolted the main derailleur body from the bracket. once I find a replacement, I expect the spacing should be standard enough that I can bolt it back on without having to remove the crank arm etc. etc.

Peter
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Old 08-16-09, 06:35 PM   #10
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35$ for an XT on a slightly older model. Going on an older bike there's no need for the latest and greatest.

Edit: Whoops. Sorry didnt' read close enough but it's out of stock. Regardless, just google e bracket front derailleur and you should get lots of results. FDs are relatively cheap and with little performance difference so you should just look for a deal.
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