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Bent derailleur hangar?

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  • May 23, 2015 at 8:29 am #24061
    foppasudd

    Hi there. I´m attaching some pictures of my sora derailleur hangar, is it supposed to look like this or is it bent?
    I´m having some trouble adjusting the gears and I´m searching for reasons for that. To me it looks like the hangar could be bent a little bit inwards but I´m not sure how it supposed to be. The bike is a Specialized Allez Sport 2014. / Lars

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Viewing 12 replies - 1 through 12 (of 12 total)
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  • May 26, 2015 at 10:18 am #847147
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    Al__S

    a spare hanger is a sensible
    a spare hanger is a sensible thing to have sat in your toolbox- and a good thing to take with you if you go travelling anywhere with your bike. They’re deliberately easy to deform/break and generally pretty easy to replace.

    May 26, 2015 at 8:59 am #847145
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    MKultra

    If he had a steel frame he
    If he had a steel frame he would want an alignment tool, if it’s aluminium just replace the thing, if you go bending them back they work harden then snap in the end. Most often in the middle of nowhere when you least expect it.

    Just buy a new one, in fact get two and carry a spare.

    May 24, 2015 at 7:54 pm #847143
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    foppasudd

    Thanks for the answers, I
    Thanks for the answers, I will ask at the bikeshop if they have the proper tool to check the alignment, or else I´ll buy one and a spare hangar.

    May 24, 2015 at 11:17 am #847141
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    JonD

    I think it does look in line,
    I think it does look in line, but the rear of the dropout/hangar are in different planes, which doesn’t help – the hangar itself doesn’t look bent. But your lbs should have an alignment tool to check (tho iirc there’s a trick using another wheel if it has a threaded axle).
    As suggested, a spare mech hanger is always a good idea – mine fits in my Rema p*ncture retpair kit box together with spare Sram chain links.

    Actually, the cyclus tool is about 25 quid inc postage from Rosebikes – I bought one some yesrs ago, seem pretty solid
    http://www.rosebikes.co.uk/article/cyclus-control-gauge-for-derailleur-hanger/aid:22552?gclid=CjwKEAjw7YWrBRCThIyogcGymQsSJAAmz_nddIq7orfqHjFjLZkFUSgvyPMWUSnhSRtbDAHEnE6UYhoCcvPw_wcB

    May 24, 2015 at 1:45 am #847139
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    Anonymous

    It looks to me like the
    It looks to me like the hanger is thicker where the axle goes through it, and it’s not significantly out of alignment to my eye. The way to check is with an alignment gauge which every bike shop has. Your photo IMAG0153 shows the pulleys and the cog are in a relatively straight line to my eye.

    May 23, 2015 at 6:03 pm #847137
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    hsiaolc

    Looks like from the picture
    Looks like from the picture your hanger is not aligned.

    Even if you buy a new one it might still need some kind of alignment to get perfect shifting especially for 11 gears these days.

    I do mine and it is very easy and very rewarding to do and best of all you know you will get perfect shifting.

    May 23, 2015 at 5:55 pm #847135
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    Leviathan

    If in doubt get a new one and
    If in doubt get a new one and keep this one as a back up, so if the worse happens you have a temporary if wonky backup so you are not off the road waiting to get it fixed.

    Gear Mech Derailleur Hangers

    just make sure you check which one you need for your model.

    May 23, 2015 at 5:53 pm #847133
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    hsiaolc

    Go get a hanger alignment
    Go get a hanger alignment tool and align it.

    Or take it to a mechanic. You can’t tell if hanger is perfectly aligned or not from a picture.

    May 23, 2015 at 4:17 pm #847131
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    Podc

    Stupid question – is the
    Stupid question – is the wheel seated in the dropouts properly?

    May 23, 2015 at 4:14 pm #847129
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    kwi

    They can be bent back into
    They can be bent back into shape, either with a long allen key in the mech mounting bolt, or if you’re feeling flash (Or can borrow one as they’re pricey.) a hanger alignment tool.
    The axis of the mech bolt is meant to be parallel to the axel.

    May 23, 2015 at 8:49 am #847127
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    Nat Jas Moe

    Best bet is to take it off
    Best bet is to take it off the bike, quite a quick job ( at most 15 min to detach and put back.) and lay it on a table you’ll soon see if its bent. I had mine bent after someone drove into the side of me and when it was on the bike I too was humming and harring about whether or not it was bent, when I took it off I soon found out it was as there was clean air under neath it. Ordered a new one off the net, quick fit and gears changing back to how they should be.

    May 23, 2015 at 8:48 am #847125
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    CXR94Di2

    Have you fallen and hit the
    Have you fallen and hit the derailleur. ? From the angle it looks like the derailleur is slightly out of line with the cass. Does it track with this mis alignment over the whole cass? Hangers are cheap £10-15

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