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Overhauling Hubs(12 posts)

Overhauling Hubsdaniel_2001
Sep 7, 2002 9:09 AM
I have 2000 miles on my Ultegra hubs. Is it time for an overhaul?

Daniel
No...Not even close...TJeanloz
Sep 7, 2002 10:17 AM
You should easily be able to get 10,000 miles between overhauls, unless you ride in torrential rain 7 days a week, and even then, you're looking at 8,000 miles.
re: Overhauling Hubsgtx
Sep 7, 2002 1:36 PM
just make sure they're adjusted properly. They should feel smooth and have just the very slightest bit of play in them so that they are just right when clamped into your frame.
Do them anyways! Clean, re-grease, re-assemble. (nm)Spunout
Sep 7, 2002 4:45 PM
If it ain't broke, don't fix it...TJeanloz
Sep 8, 2002 6:38 AM
There is no reason to do the maintenance, and I can think of a couple of good reasons not to. If you do them yourself, there are fair odds that you'll somehow botch the job and ruin your hubs; if you don't do them, you can't hurt them.
If it ain't broke, don't fix it...bobobo
Sep 9, 2002 3:07 AM
Brilliant, in other words do no preventative maintenance until they break or wear themselves out, true genius indeed.

Here's a little newsflash Einstein, there are actually people out there who are not paid wrenches who probably know more about working on their bikes than you do and stand a better chance of not botching the job than you do. If I had a dollar for every basic mistake I have seen made by local bike shop wrenches who "supposedly" knew their stuff I'd have enough cash for a Serotta Ottrott.

Overhaul them if its that time and ignore all the moronic comments which suggest you can't work on your bike only a paid mechanic can. Bikes are very simple devices and most home tinkerers who apply just a little thought do a better job than most paid wrenches anyway because its their own bike and they take it personally to do it right.

Last year a friend of mine had his "professional" local bike shop wrench tell him it was impossible to repair a loosened shifter on his Trek downtube. I called trek for him and had them send the glue repair kit directly to me. It took all of 10 minutes to do the job correctly. I can't even tell you how many times I used to take my bike into the shop for a simple tuneup only to have the shifting completely out of whack when the bike was received because the "professional" wrench didn't properly tension the cables, chain or adjust the derailleurs correctly.

Get a book like Zinn's The Art of Bicycle maintenance and read through it and you will soon understand just how easy it is to service almost any issue on your own bikes by yourself.
Good for you...TJeanloz
Sep 9, 2002 3:22 AM
And did you know that I wrote parts of that book (Zinn)? Credit is on the first acknowledgement page.

I agree, there's nothing magical about a bike. But you have no idea how mechanically inept most people are. For instance, you repaired your friend's bike in 10 minutes- why didn't he do it? Couldn't he have done it just as easily as you, if it were, in fact, so easy?

I sometimes substitue the word professional, when I really mean experienced; and there are certainly experienced mechanics who are not professionals, and professional mechanics who are not experienced. But the majority of people who work on their own bikes are niether. If you're experienced, by all means, break down your hubs after every ride to overhaul them and make sure they're tip-top. If you're asking if 2,000 miles is time for an overhaul, I'm making the brash assumption that you are not experienced, and maybe you should see a professional.
TJ's rightMcAndrus
Sep 9, 2002 5:30 AM
There's no need to overhaul hubs this early - ones that have only seen normal wear and tear. And name-calling doesn't help either.
TJ's rightbobobo
Sep 9, 2002 9:46 PM
That's your opinion and if you choose to wait until stuff breaks to service it so be it. I also do not recall calling you any names so keep your nose out of others peoples business. What are you his mother?
Overhauling ProceduresCalvin
Sep 10, 2002 7:29 AM
That is probably a bit early, but it is a simple process.

See http://www.parktool.com/repair_help/howfix_hub.shtml
without starting a pissing contest...jw25
Sep 10, 2002 8:40 AM
I'd say go ahead and open them up. A few years ago, I built 2 sets of Ultegra hubs up for friends, and all 4 hubs shipped with tiny amounts of grease - just enough to coat the bearings. I'm sure the Shimano grease is good and all (although it's too sticky for my liking), but I like bearings packed. At the very least, it's another water barrier, and the few extra grams are worth it.
Hopefully they've changed procedure lately, and squirt in a healthy shot of grease, but there's no harm in opening them up and checking.
If they look dry, carefully dump out the bearings and check the cones and races for scoring. There shouldn't be any, after 2K miles, but it's possible. If there is, you've got a warranty situation on your hands, so talk to your LBS.
Otherwise, get you some new bearings (they're cheap, and worth it - I hesitate to reuse them ever, because they do wear down. You can do it, but it may take a few adjustments to get them back in place, and if you miss one, you can screw up the races). Pack the races with grease, lay in the new balls, and cover them with more grease. Then readjust for minimal play when unclamped, and no play when in the frame/fork, and ride them for 5K miles or so. I usually regrease once a year, unless I ride through hub-deep water or something, and then I'll check for water infiltration.
With care, those hubs will last for many years.
Replacing bearings all the time?Spunout
Sep 10, 2002 9:19 AM
I would have thought (roadbikes only) that if the bearings are okay, leave them in. The races actually polish them more, and they get sweeter! (Longtime Campy user, I guess we are in different 'camps').