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Broken derailleur hanger...

Old 04-16-18, 01:45 PM
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torero310
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Broken derailleur hanger...

So I know that broken derailleur hangers are a good thing as it means the bike frame is not destroyed. Here's my issue: The company that makes specifically the hanger has gone out of business a year ago, and the company that sold me the bike (nashbar) may have issues locating one. I'm guessing I won't find one just because this has already happen and it took a couple months to find a new replacement. Does anyone know of a way to get a replacement? (for example a custom made one? idk that may be more expensive but I can't really do much while it's broken (unless I switch to a 2-by-1 gear bike so almost a fixie.
I've also just considered selling the frame and components separately and get a more mainstream bike so I won't have issues finding parts again (would probably go with a cannondale aluminum frame instead). Right now I have a carbon frame and I assessed the damage... The rear wheel probably needs to be fixed up a little, need a new chain and probably a rear derailleur but the frame seems to be intact so I could probably get a few hundred for the bike.
Any suggestions would be great.
If you feel like reading more and are curious how it broke here's the story:
I was riding back home, taking one of the bike paths (goes under the bridges etc. and pretty narrow... like 4 bikes side by side would be pushing it)... anyways so I was going under one of the passes and it curves right, so I don't have much visibility (I probably should have slowed down, but I mean it's a bike path. I expect people to be in their lane and paying attention, plus it's not a common hour for people to be out). I get under the pass (heading at about 22 mph max) and there's a pedestrian who just got up (without looking both ways), walked across the bike path and is walking back and I can't predict what he's doing, and then he freezes in the middle (doesn't even back up) so I'm like @#)$(* because on the right, there's a bunch of plants that basically force me to go on the right side of the middle so either way I'm going to hit this guy. I used both breaks, but I'm still going way too fast to stop in time so I instinctively skid the traditional way on fixies (turned left, force on the right and let the back wheel slide to my left to create more traction). Anyways I managed to stop and avoid hitting him, but I fell because of it ( applied too much pressure so the center of mass was too far too the right on a relatively flat surface, so I was going to fall no matter what). I was fine and just wanted to leave (was frustrated and tired, wanted to clean the wound and assumed my bike was fine as I rode off). I have a huge hill to climb going home so I was switching between fast cadence low gear, and fast cadence high gear and that's when the hanger broke. It was probably already broken but the stress on it created by the force applied on it after is what destroyed it. I would like to shout out to some local cyclists who offered to help me (Taiwan jerseys and part of the SDBC).
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Old 04-16-18, 02:08 PM
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wphamilton
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check if one of these looks the same
https://www.amazon.com/gp/product/B00814520U
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Old 04-16-18, 02:35 PM
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Derailleur hangers . com https://derailleurhanger.com/shop/
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Old 04-16-18, 03:21 PM
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Assuming you have both pieces of the hanger, take them off, set together, and photograph both sides.

Somebody surely has seen one.

I believe that WheelsManufacturing machines their hangers, while other vendors cast them. It depends a bit on your bike which would work best.

https://wheelsmfg.com/derailleur-hangers.html
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Old 04-16-18, 03:49 PM
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If all else fails, have the old hanger welded back together. There is also a lower temperature brazing product for aluminum. Probably cheaper than machining a new one.


But I would keep looking.



You might consider even telling the forum what you are looking for.
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Old 04-17-18, 05:02 AM
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A picture of the hanger would help. It may take some time, but you should be able to find a matching hanger at Wheels Mfg. or Derailleurhanger.com
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Old 04-17-18, 09:45 AM
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Originally Posted by fietsbob View Post
Derailleur hangers . com https://derailleurhanger.com/shop/
+1. This site is great for finding hangers for bikes of unknown make/model. Here's their page for narrowing it down by number of holes in the hanger or an option to send them a photo of your old hanger to let them find a match. https://derailleurhanger.com/alternate-search
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Old 04-17-18, 11:54 AM
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If you have the old one there is no reason a guy couldn't fab one up. I'd take the pieces and trace it on a piece of stock the same thickness. Saw,grind, file, drill,tap, whatever is required to create a copy.

I realize not everyone has those kind of home DIY skills so another possibility is to contact your local technical college/HS and see if it's something the machining/welding/fabricating classes might be able to make "at cost". they'd probably have a CAD class that could make a drawing/3D model too.
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Old 04-18-18, 03:01 PM
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Sorry for a late post XD been tending to my road rash... TBH most hangers look the same so I wouldn't be able to tell the difference (so shoot me)... anyways here's a picture of the broken together...
20180418_105208.jpg
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Old 04-18-18, 03:12 PM
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It is, at least, a simpler shape compared to many.
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Old 04-18-18, 03:24 PM
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Originally Posted by Kontact View Post
It is, at least, a simpler shape compared to many.
3 holes isn't as popular anymore though... right?
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Old 04-18-18, 04:17 PM
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Originally Posted by torero310 View Post
3 holes isn't as popular anymore though... right?
I have no idea. The screws just locate it while the QR keeps it in place.
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