650b wheeset query

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BridlewayBimbler
Posts: 93
Joined: Tue Oct 03, 2023 12:30 pm

650b wheeset query

Post by BridlewayBimbler »

Hello,

I am.looking at 650b wheelsets. I note.that most state compatibility with 10/11/12 speed cassetes

My bike currently has a 9 speed Sora cassete fitted

Will I just need suitable spacers to make this work?
Lazarus
Posts: 3648
Joined: Fri Aug 30, 2013 10:49 am

Re: 650b wheeset query

Post by Lazarus »

Free wheels have not changed my pro 2 hope hub has had casettes from 9 to 12 on it.

Road and mtb casettes (not sure about 9.speed.though) are different widths though road are 2 mm ish wider so not sure in this case.
jameso
Posts: 5071
Joined: Tue Nov 06, 2012 1:48 pm

Re: 650b wheeset query

Post by jameso »

Yes. Road 11-12s freehubs are a little wider than MTB 9-10-11s freehubs. If you have a Road 11-12s compatible freehub you can use any trad spline MTB or road cassette, a 9-10-11s MTB or a 9-10s road cassette just needs a 1.85mm spacer behind it to take up the space.

(edit - that 1.85mm spec is for Shimano freehubs, other brands might be different but basically same principle)
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