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servicing a rear hub...

Old 12-10-06, 11:22 PM
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DogBoy
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servicing a rear hub...

I'm a moderate do-it-yourselfer. I do derailleur adjustments, drive-train removal/cleaning, lube etc...I've changed cranks a few times and even a bottom bracket or two. However I've never touched a hub, and I think I've got one that needs help.

Description: this is a cassette hub, not a freehub (ie, cartridge thingy that accepts 7-speed cassettes).

Symptoms. I noticed this tonight when I was making the change to the crappy winter wheels. As I was adjusting the derailleur, I noticed that if I held the pedals and the wheel was moving (ie coasting) the chain would sag. I pulled the wheel off the bike, and low-and behold the rotation of the cassette body was "lumpy" and stiff. Is this the result of having a crappy hub, cold weather (~30 F) or is it something that can be fixed.

If it can be fixed (without having to rebuild a wheel) is this something to be left to the bike shop guys or is labor enough that I would be well served by trying it myself?
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Old 12-11-06, 04:57 PM
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jp_rcr
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first off you are talking about the freehub and the cassette slides onto it (a freewheel has treads directly on the hub)
try some silicon spray sometimes it is that easy. let the wheel spin and spray the freehub body that should loosen up your freehub body. it doesn't sound that serious but if it is worse than you mke it sound take it to your lbs and have them replace the freehub body. gl
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Old 12-11-06, 08:13 PM
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matimeo
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Originally Posted by jp_rcr
first off you are talking about the freehub and the cassette slides onto it (a freewheel has treads directly on the hub)
try some silicon spray sometimes it is that easy. let the wheel spin and spray the freehub body that should loosen up your freehub body. it doesn't sound that serious but if it is worse than you mke it sound take it to your lbs and have them replace the freehub body. gl
+1, sounds like a problem with the freehub body- lube it up!
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