Does this rear dropout look normal to you? Standert Triebwerk Mach 3
Moderator: robbosmans
For shifting issues the first thing I would always check is the derailleur hanger and see if it's straight. (if you're still having problems after proper setup/tuning, ofcourse)
A derailleur alignment tool is the best investment you can make as a home mechanic IMO. And if you search around, people have made very successful DIY tools for dirt cheap that work just as good. Sorry can't help further.
A derailleur alignment tool is the best investment you can make as a home mechanic IMO. And if you search around, people have made very successful DIY tools for dirt cheap that work just as good. Sorry can't help further.
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Both those dropouts look like they've been run with a loose skewer for quite some time.
It looks like the skewer has rotated and worn down the material in the dropout.
To me, that NDS dropout has either been badly machined, or was intentionally machined like that in order to correct an error in chainstay length on one side, or frame alignment. It definitely shouldn't be like that!
I don't think it can be caused by a loose skewer - steel dropouts are very hard and the NDS experiences tiny loads (increased if you have a disc brake; n/a here).
It may or may not be the cause of your noise - that depends on whether the rear wheel, and so cassette, is out of alignment enough, if at all.
I don't think it can be caused by a loose skewer - steel dropouts are very hard and the NDS experiences tiny loads (increased if you have a disc brake; n/a here).
It may or may not be the cause of your noise - that depends on whether the rear wheel, and so cassette, is out of alignment enough, if at all.
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A shimano/steel axle absolutely will chew through a drop out if the skewer is not tight enough.
Both dropouts are showing signs of damage, you can see a smiliar shape in shots 2 (DS) and 3 (NDS)
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BTW, what skewers have you been using?
Shot 2 is NDS........ghostinthemachine wrote: ↑Tue Jun 15, 2021 9:56 pmA shimano/steel axle absolutely will chew through a drop out if the skewer is not tight enough.
Both dropouts are showing signs of damage, you can see a smiliar shape in shots 2 (DS) and 3 (NDS)
There's no significant change from a "normal" shape - that I can see - for the DS in shot 1.
I suspect that in cases where a dropout is worn where the axle/end caps mate, the faces are also obviously worn - that doesn't appear to be the case here.
Edit: also, a steel dropout that wears instead of a steel axle is a poor spec - they should definitely be harder than the axle; always! Anything other than a steel dropout is a different matter
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