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Shimano Deore FD-M591 9 Speed Triple Conventional Swing Dual Pull Multifit Front Derailleur

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Questions & Answers (4) Q & A
Mega 9 Speed. For 44 / 48T chainsets.

- Wide link design Deore M591 MTB front derailleur
- Conventional swing design
- Wide pivot link design for greater torsional rigidity improves shifting response and service life
- Can be fitted to 34.9 or 31.8mm seat tubes with the supplied shim (can also be fitted to 28.6mm seat tubes if an additional shim is purchased)
- Cable routing can be used with frames built for top or bottom pull derailleurs
- Mega9 drivetrain compatibility
- Reinforced steel chain guide offers high strength and rigidity for improved shifting response
- Maximum capacity of 22 teeth, and up to 48 tooth chainring
- For 66-69 degree chainstay angle
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Questions & Answers (4)
Useable with a 50 tooth chainring
06 Feb 2018
I know the stated maximum size ring is 44-48 teeth but would it accept a 50 tooth setup with a maximum capacity of only 12 teeth -38-50)
Thanking you in advance
Hi there,

The max ring size is 48t.

Can I use this with a 48/36/26 chainring? Thanks.
21 Dec 2017
Hi there,

As the description reads "Maximum capacity of 22 teeth, and up to 48 tooth chainring"

So yes, using a 48t big ring means the smallest little ring you can use is 26t.

Shimano Deore (Fd-M511) Ill This Replace -
18 May 2017
Can this replace existing believed-to-be FD-M511 9 speed, TOP SWING DUAL PULL DUAL ISIS on my GT Avalanche 1.0 2004 please ?

We have looked at your bikes specs and can say that it should replace your existing part. However we do not stock this bike so we have not tested this.

9 Speed Compability
16 Sep 2016
will this work with a 9 speed with 44/32/22 chainrings? Is it a clamp on as i cant tell from the picture? thanks
Hi, yes this will work with a 44/32/22T 9 speed set up with no problems & is a clamp on derailleur.