Old 09-13-13, 07:41 AM
  #1  
TakingMyTime
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Join Date: Aug 2012
Location: Los Alamitos, Calif.
Posts: 1,297

Bikes: Trek 7.4 FX, 5200 & 7700

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Another Crank swap question FC-M391 > FC-M590

My Trek 7.4fx has a 68mm BB shell. It's stock crankset is a Shimano model FC-M391 with a 48-36-26 tooth configuration. I would like to know if a Shimano FC-M590 Deore Hollowtech II would be a compatible swap? I understand I would have to remove the current BB and install the outboard bearings along with any other related derailleur positioning etc.

Thanks in advance,
TMT
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