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  1. #1
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    rear d. took a hit

    Out on my favorite loop yesterday, my rear derailleur took a hard hit from rock. The shifting was immediately affected. The hanger doesnt appear to be bent.
    Can anyone give me any guidance on trying to center/bend it? Or should I just fool with the indexing settings to see if it will work somewhere?
    Any guidance is appreciated!

  2. #2
    ride hard take risks
    Reputation: dogonfr's Avatar
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    Possibly bent the derailleur at the hanger.

  3. #3
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    It's hard to see if a hanger is bent sometimes with the nekkid eye; a derailleur alignment gauge is the tool to both check it and bend it back with. You might be able to do it by eye without the tool; some folks like to use a stout 5mm allen in the rd mounting bolt for leverage; be careful that bolt is tight first. Before you do much of anything, just go thru the rd as if you were mounting it for the first time, adjustments and all; either you'll get it readjusted properly or you might get a better idea of what you've done if not.
    "...the people get the government they deserve..."
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  4. #4
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    Yeah, go to a shop and ask them to use a alignment tool on the hanger. Theres also a good chance you bent the der. Cross country R der's are surprisingly fragile, I'm on my third this year. I'd like to build up a cross country machine with a saint R der, but it seems like a silly idea. Maybe I should just stop getting sticks stuck in my wheels......

  5. #5
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    Reputation: dogonfr's Avatar
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    Quote Originally Posted by kbiker3111
    Yeah, go to a shop and ask them to use a alignment tool on the hanger. Theres also a good chance you bent the der. Cross country R der's are surprisingly fragile, I'm on my third this year. I'd like to build up a cross country machine with a saint R der, but it seems like a silly idea. Maybe I should just stop getting sticks stuck in my wheels......
    3rd derailleur this year? Dank mine is 2 1/2 years old i better go find some bigger stumps to berm off!

  6. #6
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    Try and put the edge of a metal ruler across different portions of the inside of the dropout, going down to the RD bolt. This might shed some light.

  7. #7
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    done and done, and I mean done!

    Quote Originally Posted by Jerk_Chicken
    Try and put the edge of a metal ruler across different portions of the inside of the dropout, going down to the RD bolt. This might shed some light.
    Great advice- have not tried that before. It is straight.
    So,checked the H/L settings- those were fine, so I just tuned the indexing as usual, starting in the middle and working my way around from there.
    If only I would have had my portable stand out on the trail, I would have been able to find that sweet spot! Maybe I will buy some extra shoelaces for that purpose...

  8. #8
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    Yeah, a metal ruler has been invaluable for me to test the straightness of dropouts, disc mounts, and derailleurs/hangers.

    One thing you might want to check is damage to the cable and/or the ferrule that leads it into the RD. I've scratched my head tons of time over poor shifting, then saw the cable wirewound damaged, or the ferrule broken or breaking.

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