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Broken non replaceable derailleur hanger - frame done????
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My very old but still loved trainer bike, Klein Aeolus, snapped a derailleur hanger on the trainer today. The frame is aluminum, the hanger is not replaceable. The hole that the derailleur screws into just snapped. Is the frame done? It's such an old bike that it really wouldn't make a lot of sense to ship it off somewhere and have it fixed. But I was hoping there would be a way to fix it. Especially if a redneck repair can be done - I live in the sticks, rednecks with power tools are plentiful here. I did see this:

http://problemsolversbike.com/products/universal_derailleur_hanger


But I wasn't sure how many gears that would cost me. I only have 8 in the back on this older model bike to begin with.

Thanks.
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Re: Broken non replaceable derailleur hanger - frame done???? [2wheels] [ In reply to ]
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2wheels wrote:
I live in the sticks, rednecks with power tools are plentiful here.

Over the years I've encountered several "rednecks" that were absolute artists with a heliarc. You might live near one too.

Hugh

Genetics load the gun, lifestyle pulls the trigger.
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Re: Broken non replaceable derailleur hanger - frame done???? [2wheels] [ In reply to ]
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Single speed time.
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Re: Broken non replaceable derailleur hanger - frame done???? [2wheels] [ In reply to ]
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If it's just a trainer bike, could you wrap it in fiberglass and then drill it and tap it? Probably a one day amateur job that you probably could do yourself. It might be worth a try but I truly don't know how it would work.......?

----------------------------
Jason
None of the secrets of success will work unless you do.
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Re: Broken non replaceable derailleur hanger - frame done???? [2wheels] [ In reply to ]
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Usually the answer to this is to modify/machine the broken dropout in such a way that you can attach a replaceable dropout that was designed to fit another frame. I've done it with proper machine tools, and I've also done it with a dremel tool on the tailgate of my truck, so it's definitely within the bounds of "redneck repair."

Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/
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