Sealed Freehub

[Andyg62]

I have a muddfox bike and the cassette seemed to be getting stiff. I have now removed the cassette but the freehub appears to be a sealed part of the wheel and therefore I am not able to maintain it. Is this likely to be the case or am I just missing something. Thanks for any advice.

[GeorgeET]

Some people have successfully added some time to their freehubs. They are expendable and can be unbolted from wheel and replaced.

AS per cleaning, unbolt it, flush it with a good cleaner , get it moving freely and than spray lubricant into it. Some can be taken apart. IMO with the labor and cleaners needed , its just easier to get a new one.

Do not know whats available in UK. I find automotive spray cleaners useful such as Gumout or Brake Clean (just be careful with paint) Follow manufacturers safety guide.
and a Teflon spray as lubricant.

http://www.parktool.com/blog/repair-help/freehub-service
http://bicycletutor.com/freehub-body/

[RobAR]

Hi Andy. George gave you some good links and thoughts.
Something that you want to pay attention to, though - that pic on the Park site that shows the body being removed from the drive-side? Some are also removed from the other side. On less-expensive hubs, some are not removable at all but those are rare. Others can be removed that are so obscure that you have No Idea how to find a replacement.

Andy - if you can provide more details on parts, we might have more info.

[1FJEF]

(02-17-2011, 01:15 AM)RobAR Wrote:  Some are also removed from the other side. On less-expensive hubs, some are not removable at all but those are rare. Others can be removed that are so obscure that you have No Idea how to find a replacement.

Yeah, the ones that come off from the "wrong" side seem to use an 11 mm hex instead of a 10. I've got a wheel that a guy sold me with a free freehub spare as he said I would never find one!