I just bought a Mavic Askium rear wheel replacement. 11sp with center lock disc. the free hub has these tags over it on two sides. the x thru the cogs means? the ok looks like a standard cassette. any ideas?
by paulared
I just bought a Mavic Askium rear wheel replacement. 11sp with center lock disc. the free hub has these tags over it on two sides. the x thru the cogs means? the ok looks like a standard cassette. any ideas?
by paulared
10 Comments
Some cassettes have several of the larger cogs joined together in one sort of ‘block’. Other cassettes have all cogs individual, you can’t use the individual ones on this freehub.
I’m guessing it means to use cassettes with a cluster instead of seperate cogs, to make sure they don’t dig into the freehub as much
It says you should not use a cheaper cassette which is made up of individual cogs and spacers, but a more expensive one where the larger cogs are built on an aluminum spider assembly, that distributes the load over the surface of the splined interface.
Possibly it wants a unified cassette not free cogs such that it spreads load across the spines? Lighter hubs can get shredded.
Don’t use a cassette made up of individual loose sprockets, use one where the sprockets are attached together on a carrier. It’s presumably an aluminium freehub body and individual sprockets can dig into it.
Probably for monoblock / spider cassettes only
It’s not ok to mount cassettes consisting of single rings with spacers in between. This would deform the HG profile as the slim rings would transfer the torque through a small area.
Cassettes with their cogs mounted on a carrier with a wide HG profile are fine. You can even see the continuous profile inside the carrier on the illustration.
no loose sprockets or presumably riveted cassettes, [carrier cassettes only](https://www.merlincycles.com/sunrace-mx8-cassette-11-speed-108365.html), most likely because its an aluminium freehub
Dont use a chain without a casette. This is how I read it.
My Aksum wheelset came with a similar label but I couldn’t find a 9 speed unified cassette so I’m running what I’ve got which is five riveted cogs and theee small loose cogs with the smallest cog being deep splined, of course. I took it apart after 400 miles for cleaning and couldn’t see any gouging on the free hub body which I’m pretty sure is steel and not aluminum.