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View Full Version : HELP! Picture of broken derailler what to I need?


TimS
04-01-2013, 06:42 PM
Here is the picture of the 9 speed dura ace derailler that broke over the weekend. What will work as a replacement?

maunahaole
04-01-2013, 06:45 PM
What sort of toxic sludge have you been riding through?

vqdriver
04-01-2013, 06:51 PM
yeah, really. is that what salt on the road does?

EDS
04-01-2013, 06:51 PM
What sort of toxic sludge have you been riding through?

Agreed. Gotta be a story behind that. You need a clamp-on style front derailler.

dave thompson
04-01-2013, 06:52 PM
You need a 9-speed Shimano braze-on derailleur, you can use the clamp that you have now. 5500 (105), 6500 (Ultegra) & 7700 (Dura Ace) will all work perfectly with your existing components. Or you can use the same variety of derailleurs in a clamp-on model, with a 34.9 (1 3/8") clamp.

Louis
04-01-2013, 06:53 PM
You need a 9-speed Shimano braze-on derailleur, you can use the clamp that you have now.

Or a clamp-on, if you don't feel like re-using the existing clamp.

maunahaole
04-01-2013, 06:56 PM
But if you get a clamp on, you will need to know the measurement on the clamp - the common sizes are 28.6, 31.8 aka 32, or 35. If you go the clamp route, it should be stamped on the inside of the clamp that you have on there now.

Louis
04-01-2013, 07:02 PM
I can't figure out why all the gross stuff that's on the drivetrain isn't also on the frame (or the spider).

oliver1850
04-01-2013, 07:22 PM
I have a new FSA braze on that works well with Shimano and isn't expensive. I have them on a couple of bikes.

http://www.ebay.com/itm/FSA-Gossamer-Compact-Braze-on-Bike-Front-Derailleur-New-/390566776819?pt=Cycling_Parts_Accessories&hash=item5aef980ff3#ht_3106wt_1166

lonoeightysix
04-01-2013, 07:46 PM
if you're riding in salt, either spec cheap,, or make the commitment to at least rinse, and then provide a warm/dry environment. i'm in the same boat, rust belt wise.

check everything else, while you're waiting for the replacement FD.

BumbleBeeDave
04-01-2013, 07:49 PM
. . . a new bike.

(Come ON! You were just waiting for a reason, weren't you?)

BBD

djg21
04-01-2013, 08:09 PM
Agreed. Gotta be a story behind that. You need a clamp-on style front derailler.

Looks like a braze on front derailleur.

You also need a bundle of shop rags and some Simple Green, or Bike Lust, etc.

oldpotatoe
04-02-2013, 09:52 AM
Here is the picture of the 9 speed dura ace derailler that broke over the weekend. What will work as a replacement?

Any shimano for double, 9s front derailleur, Braze-on. A 10s will work inna pinch but it is narrower and doesn't have the travel the 9s one does for 9s spaced chainrings.

Like older 7700/6500 front der or a 9s Tiagra, Sora, etc.

If this gives you a thousand yard stare, go to a decent LBS, it's what they do.

William
04-02-2013, 10:05 AM
What sort of toxic sludge have you been riding through?

Urban camo. He just needs booties to match.:)

http://images.biketart.com/images/MT500-Camo-Overshoe.jpg_10.jpg?width=800





William

nicrump
04-02-2013, 12:15 PM
judging by the shark fin nature of those teeth, you need a new drivetrain.

Dude
04-02-2013, 12:21 PM
.....and your der is mounted to high. the outer plate of the cage should be 1-3mm above your large chainring.

Louis
04-02-2013, 12:56 PM
Also, while we're at it, do a better job of washing behind your ears, and floss before going to bed. ;)

savine
04-02-2013, 01:04 PM
Right, I think everyones told you what you need to know, bet you wished you never asked now......and my two pence worth sort out that bike:banana:

TimS
04-02-2013, 08:32 PM
You are all correct. The bike has I dont know how many thousand of miles on it....all original from new....so it is worn. $ aint free! thanks for the input

TimS
04-02-2013, 08:34 PM
I do have a Serotta custom ti tri set up Id show you all see but not sure I could handle the critic. It has been a bit more pampered....