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Cycling industry needs 45,000 mechanics right now, and it's an AI-proof job (www.cyclingweekly.com)
submitted 18 hours ago by [M] to c/micromobility@lemmy.world
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[–] -3 points 11 hours ago (8 children)

It's not. Derailleur is set once when it's installed onto the bike and you should never need to adjust it again. If the shifting is crap the issue is the twisted hanger and no amount of adjusting the limit screws is going to fix that.

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  • [–] 3 points 6 hours ago (3 children)

    Well maybe (even though I do think a bit of a bent hanger can be compensated for) but even then it’s only true until you change cassette/chain or the shifter cable, which you will have to do at some point.

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  • [–] 1 point 6 hours ago (2 children)

    A new chain or cassette doesn't affect the derailleur. A new cable does, but the tension is adjusted from the shifter, not by messing with the derailleur adjustments. It's true that god-awful shifting due to a bent derailleur can be mitigated to some extent by messing with the adjustments but it'll never be good. It can't be because the derailleur is bent. Then when you replace the hanger with a straight one the shifting goes to shit again.

    Whenever my derailleur catches on a rock or a stump and the shifting goes to shit all I do is remove the derailleur from the hanger, use the hanger adjustment tool to straighten it out and once I re-attach the derailleur it shifts perfectly again with no adjusting at all.

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  • [–] 1 point 5 hours ago*

    It does tho. Not all cassettes are built on the same tolerances and different brands might have different interpretations of the standards, so always check the limits.
    Cable tension more often then not can be dialed on the derailleur as well.
    Worn chains can impact shift performance, and sometimes adjusting tension or derailleur height can improve things.
    These are things that aren’t noticed when everything is new and clean, but can slowly creep up as an issue.

    So yes. I agree with your sentiment that a well set up derailleur should keep shifting, in practice it’s more nuanced.

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  • [–] 1 point 5 hours ago*

    Shit like this is why I will never own a derailleur bike again. Too much maintenance. I was constantly catching the derailleur on rocks and curbs and things like that, then having to do the finickiest mechanical work known to man. All just so I can go uphill slower?? Crazy technology!

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  • [–] 7 points 9 hours ago

    I had to re-index my gears ~2 years after I bought my new mountain bike... It's not "hard" but if you've never done it before and don't have a place where to properly work on your bike I can see why people would rather pay whatever the fee is at a shop.

    Like with most stuff you do it a couple of times and it becomes easy.

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  • [–] 1 point 11 hours ago (2 children)

    So you're saying it's impossible to bend the derailelellueur enough for shifting to fail?

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  • [–] 2 points 11 hours ago (1 child)

    Why is it every time someone starts a sentence with "So you're saying.." it's then followed with misrepresentation of what was actually said?

    No, that is not what I said. What I did say is that in the vast number of cases when your shifting is shit it's not because of bent derailleur or badly adjusted one but it's a bent derailleur hanger. That part is designed to bend specifically so that the derailleur itself doesn't.

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