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  1. #1
    mtbr member
    Join Date
    Apr 2011

    Newb with some crank questions

    I bought an old stumpy fsr a little bit ago to get back into biking and have been slowly changing and tweaking things as I go along. I've been struggling with getting the front derailleur to shift right and today I took some time to tweak it some more and noticed that A) this doesn't have the original crank anymore and B) that I've got a bent chainring that needs replaced.

    The crank on it now is a shimano m341 and as best I can tell the chainline is ~50 mm. I know this is a cheap crank so would I be better off switching cranks and trying to get to a 47.5 chainline? Or should I just replace the chainrings? Assuming the bottom bracket is still the original one, the measurements are 68 and 113, octalink so If anyone has any recommendations they will be greatly appreciated.

  2. #2
    Former Bike Wrench
    Reputation: mtnbiker72's Avatar
    Join Date
    Jan 2007
    I believe the chainrings on the Acera cranks are rivited, so I'd start with at least a new Alivio crankset. The FC-M410 has replaceable rings, and a 50mm chainline with a 118mm spindle. So if you have a 113mm, it should be 47.5mm

  3. #3
    mtbr member
    Join Date
    Jun 2007
    If you want to spend a little more, jenson has a some OE deore ht2's.

  4. #4
    mtbr member
    Join Date
    Apr 2011
    Thanks for the help guys. I'm doing my best to actually learn this stuff as i go along and it was just a little overwhelming when I first started looking yesterday with all the different measurements and BB combos but I think I'm starting to get a grip on things now. I think that OE deore might be the ticket for now. Thanks again.

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