Bike Forums - View Single Post - Shimano Deore M591 SGS Rear Derailleur Long 9 SPD Help

03-08-14 | 04:55 PM

#10

Bill Kapaun

Really Old Senior Member

Joined: Feb 2007

Posts: 14,536

Likes: 1,799

From: Mid Willamette Valley, Orygun

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds. 2019 Giant Explore E+3

If you have friction shifters, you have the ability to trim the RDER to keep it centered regarding the chain.
I think you'll be OK, but it'll be just a little "fussier" to prevent chain rub.
You can use 9 speed chain though.

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