Explosive

Hey,

putting my new wheelset together which has white industries XMR hubs. Im going to run a shimano 11-28T casette but this hub came with a amall spacer held on by rubber bands. a quick search has me assuming i only run the spacer with a 9/10 speed casette right? take the thing off before installing the 11 speed?

thanks

fietsbob

Generic : IE not specific to your situation..

a spacer separates the cogs by a certain distance ... " more speeds " is the density of cogs . in a limited space..

more means the spacing is closer, so the spacers are thinner,,

Andrew R Stewart 

There's two reasons to have a spacer on the splines of the freehub body, behind the cassette. One is due to freehub design, some hub brands require a spacer behind all cassettes regardless of cog count (Mavic comes to mind. The other reason (and why Shimano sometimes needs a spacer) is to end up with enough cassette and spacer "width" to allow the lock ring to fully tighten down without bottoming out on the freehub's end (which will result in the cogs remaining slightly loose).

One needs to make sure that both the cassette cogs are fully tightened against each other, and the freehub body's inner end, and that the small cog's splines have engaged the freehub's. All without ending up with either der cage/spoke contact or chain/seat stay end contact. Andy

readability

If your cassette is a Shimano 11-speed road type, no spacer needed.

Explosive

i believe it would be considered road. Its a 105 casette CS-5800