shimano m590 chainset. 9 speed only?

General cycling advice ( NOT technical ! )
chocjohn9
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Joined: 20 Mar 2012, 10:07pm
Location: Sunny Belgium

shimano m590 chainset. 9 speed only?

Postby chocjohn9 » 30 Aug 2019, 8:59pm

Can I run 10 speed gears, sti, rear mech etc and still use this chainset?
I realise that Shimano say it is for 9 speed but there are plenty of chainsets out there that aren't gear number specific.
If not I'd be interested to know why not!
Thanks
John

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Sweep
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Joined: 20 Oct 2011, 4:57pm
Location: London

Re: shimano m590 chainset. 9 speed only?

Postby Sweep » 1 Sep 2019, 8:39am

Interesting question, but wouldn't it be better in the tech section?
You may well get faster answers.
Sweep

pwu
Posts: 20
Joined: 8 Jul 2019, 2:48pm

Re: shimano m590 chainset. 9 speed only?

Postby pwu » 1 Sep 2019, 12:41pm

I have an m590 48/36/26. I recently found some barely used t611 10 speed rings on ebay for £11 as future spares. Both 26t cogs are stamped 9/10 speed (58g), the middle rings are identical (96g), the m590 outer ring (not drilled for a guard) is 98g the t611 outer ring is 110g and I think the extra weight is reinforcement to fit a chainguard.
m590 48t.jpg

t611 48t.jpg

Brucey
Posts: 35238
Joined: 4 Jan 2012, 6:25pm

Re: shimano m590 chainset. 9 speed only?

Postby Brucey » 2 Sep 2019, 12:25am

IIRC there are two different versions of FC-M590, and one is meant for 10s

https://si.shimano.com/pdfs/ev/EV-FC-M590-10-3207B.pdf

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

mattsccm
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Joined: 28 Nov 2009, 9:44pm

Re: shimano m590 chainset. 9 speed only?

Postby mattsccm » 2 Sep 2019, 7:03am

Yes it should be in technical but that seems to be ignored so often.
Most chainsets work with most chains. 7/8 speed ones can allow 11 speed chains to drop in the gap if 11 speed mechs are used and 11 speeds don't play nicely with with wide 7 speed chains . All generalisations. Most are fine if the numbers are close. Wouldn't worry me if it was one out.

chocjohn9
Posts: 278
Joined: 20 Mar 2012, 10:07pm
Location: Sunny Belgium

Re: shimano m590 chainset. 9 speed only?

Postby chocjohn9 » 3 Sep 2019, 12:48pm

Thank you for the replies and images.
I will fiddle in the shed and report back. This boils down to being a bit tight and lazy. Not changing the chainset would be great.
I did mean to put this in the technical section, but only realised after I'd posted and didn't know how to move it. :?