Shimano FH-M756A XT 8/9 speed rear hub,will it take10 speed?

Trips, adventures, bikes, equipment, etc.
Indeboat
Posts: 121
Joined: 4 Oct 2012, 5:59pm
Location: Derbyshire

Shimano FH-M756A XT 8/9 speed rear hub,will it take10 speed?

Postby Indeboat » 20 Sep 2015, 1:49pm

Recently aquired a full suspention MTB frame ,i am about to build it up with parts that i already have .
The chainset is a Shimano Dynasys 10 speed .
My question is , i have a new XT rear hub but it would have been originaly for 8 or 9 speed use,will a 10speed cassette fit onto the same body?
My thinking is with the chain being narrower maybe the cassette would be more compact taking the same space as the 9 speed would :?
I dont have a 10 speed casette at the moment to try.

Indeboat
Posts: 121
Joined: 4 Oct 2012, 5:59pm
Location: Derbyshire

Re: Shimano FH-M756A XT 8/9 speed rear hub,will it take10 sp

Postby Indeboat » 20 Sep 2015, 8:21pm

Sorry to have bothered you guys and gals,but have the answer.
Yes, with the use of a 1mm spacer.

User avatar
elPedro666
Posts: 1280
Joined: 9 Oct 2014, 7:38am
Contact:

Re: Shimano FH-M756A XT 8/9 speed rear hub,will it take10 sp

Postby elPedro666 » 24 Sep 2015, 8:41pm

So a ten speed cassette is actually narrower than a nine?! Interesting, any idea whether that is specific to Shimano? Only ask as I'm all but certain that I bunged a Sram ten speed cassette straight onto an m975 XTR hub...

Indeboat
Posts: 121
Joined: 4 Oct 2012, 5:59pm
Location: Derbyshire

Re: Shimano FH-M756A XT 8/9 speed rear hub,will it take10 sp

Postby Indeboat » 26 Sep 2015, 5:45pm

Update on fitting the 10 speed Shimano cassette.
Just fitted it without the 1mm spacer,works perfectly,if i had of fitted the spacer i think the locking ring would have been short of thread :?

User avatar
cycleruk
Posts: 5259
Joined: 17 Jan 2009, 9:30pm
Location: Lancashire

Re: Shimano FH-M756A XT 8/9 speed rear hub,will it take10 sp

Postby cycleruk » 6 Oct 2015, 9:05pm

Some 10s need a spacer and some don't. :?
I had an Ultegra cassette that came with a spacer but the 105 , Tiagra & SLX didn't.
It might also depend on which freehub model it is fitted too.

8s, 9s and 10s, as far as I know, all fit the same hub.
There's no such thing as a tailwind.
It's either a headwind, or you're going well.