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Safe to remove derailleur hanger?

Old 08-13-20, 07:40 PM
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crankholio
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Safe to remove derailleur hanger?

One of my single speeds has a removable derailleur hanger that I no longer use for anything. The only reason I haven't removed it is because then that area will be half the thickness, and I wasn't sure if that would weaken the frame where the rear axle mounts.

So what's the verdict: leave it or remove it?
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Old 08-13-20, 08:45 PM
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Consider how much rear axle extends beyond the end cap/lock nut. This axle end needs to stop before the drop out's outer face so to insure complete axle retention. One could always cut off the lower portion of the replaceable hanger to retain full drop out thickness. Andy
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Old 08-14-20, 10:32 PM
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I don't think I'd have the axle retention issue. This is what my rear hub looks like:

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Old 08-15-20, 12:35 AM
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Probably an aluminium frame?

I don't know of anyone who's done that, nor have I ever tried it.
Don't think that RD hangers in general fit tightly enough to provide any structural support when pedalling force is applied.

Though a safer bet, if it really bothers you, would be to just cut off the hanger part. Preferably sourcing a spare RD hanger for the frame before that, in case you ever wish to convert it to a multi-speed bicycle.
Or just leave it as it is, of course - "if it ain't broken..."
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Old 08-15-20, 01:58 AM
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Yeah, it's aluminum. Good point about the hanger fit. I doubt I'll cut it because my skills with a dremel will cause it to look terrible. I'll probably just leave it as-is to be safe. When I was trying to find an example online of anyone else who has removed one for a single speed conversion, I couldn't. Thought that was odd, but then the first reply here reminded me that the rear axle in some hubs probably wouldn't allow the possibility.
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Old 08-15-20, 06:06 AM
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We see hangerless bikes sometimes. Sometimes they suffer from the side effects of axle not being fully secured on the drive side or the drop out becoming damaged by the axle nut/QR end nut digging into the face. Not an often thing but sad when done, sometimes. Almost always Al frames and of mid to low end. Abdy
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