Thread: Drivetrain Questions for New Build
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Old 09-21-16, 05:16 PM
  #18  
nfmisso
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Originally Posted by mstateglfr
.... get a Deore RD that is M591 or M592. Both of those Deore rear derailleurs are made for 9sp(or less) drivetrains.
https://www.amazon.com/Shimano-9-Spe.../dp/B00WJGWJUC
https://www.amazon.com/Shimano-9-Spe.../dp/B0064QND30
Both of the above MTB 9 speed RD will work with 10 speed ROAD shifters on a ten speed cassette, but NOT 10 speed MTB shifters.

The M591 has a cable adjustment screw and is rated for 34T max; the M592 lacks the adjustment screws (strongly recommend an inline or cable stop adjuster) and is rated for 36T max. Both are "Shadow" RDs, meaning that they tuck under the bike frame instead of sticking out. This feature is great for pannier clearance - you can have your panniers (or something strapped to them) drop well below axle level. The M592 is my go to RD.
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