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  1. #1
    Senior Member donrhummy's Avatar
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    How often overhaul bottom bracket, headtube, etc?

    How often (in miles) should you get the headtube, bottom bracket, hubs, etc taken apart and regreased, parts fixed, etc?

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    Banned. 2Tired2Shift's Avatar
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    I thought all modern (quality) bearing systems were lifetime (sealed).

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    Senior Member donrhummy's Avatar
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    Not according to the LBS. They claim the sealed last a shorter time than the unsealed and the reason for sealed was simply because it made replacing parts much, much easier and less labor intensive. And overhaul doesn't nec. mean replace, it could just mean regreasing and tightening.

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    Senior Member mezza's Avatar
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    Bikes need maintenance??





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    Ho-Jahm Hocam's Avatar
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    Quote Originally Posted by donrhummy
    Not according to the LBS. They claim the sealed last a shorter time than the unsealed and the reason for sealed was simply because it made replacing parts much, much easier and less labor intensive. And overhaul doesn't nec. mean replace, it could just mean regreasing and tightening.
    This is true. Real overhauling is just breaking down the parts, cleaning them off and regreasing then putting them back together and adjusting them properly.

    I've helped people overhaul probably a dozen cotter pin bottom brackets from the 40's through 60's that are still good. At worse, the cups or spindle are pitted and need replacement but the bearings are usually fine.

    Cartridge bottom brackets tend to last 5,000 - 10,000 miles, more if you're using Phil stuff which I think can be overhauled.
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    Banned. 2Tired2Shift's Avatar
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    Quote Originally Posted by donrhummy
    Not according to the LBS. They claim the sealed last a shorter time than the unsealed and the reason for sealed was simply because it made replacing parts much, much easier and less labor intensive. And overhaul doesn't nec. mean replace, it could just mean regreasing and tightening.
    YEah, that's what I meant by lifetime; you use them until they start making noise then you replace them.

  7. #7
    59'er Mariner Fan's Avatar
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    I've never thought to do this unless I notice a problem. I'm getting a 1985 frameset and I'll have the LBS guys check the bottom bracket and headtube bearings before I build it up just to be sure.

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    Senior Member donrhummy's Avatar
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    I've just been hearing a sound kind of like sand in there and I'm wondering if the grease simply ran out or if it's sand. So I wanted to get that looked at.

  9. #9
    Gorntastic! v1k1ng1001's Avatar
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    Quote Originally Posted by donrhummy
    I've just been hearing a sound kind of like sand in there and I'm wondering if the grease simply ran out or if it's sand. So I wanted to get that looked at.
    sounds like you need to overhaul something

    For hubs and BB, I usually wait until I feel a little grittiness -- sometimes with the BB you have to pull the cranks to notice

    I could really give a sh1t about my headset unless it pits out, I've been running a headset on my mtb with no seal for a couple years, works just fine

  10. #10
    Keep on climbing
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    Quote Originally Posted by Hocam
    Cartridge bottom brackets tend to last 5,000 - 10,000 miles, more if you're using Phil stuff which I think can be overhauled.
    Five to 10k mlies? What are you doing to ruin a cartridge BB that quickly? I had a good 35,000 miles in a 1998 Ultegra BB; it got retired only because the bike did. My new bike has an FSA ISIS BB with about 8,000 miles on it (and rapidly counting). Nothing wrong with it yet.
    "There is more to life than increasing its speed" -- Mahatma Gandhi

  11. #11
    Senior Member smurf hunter's Avatar
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    I recently overhauled most of my commuter over the weakend. I was hearing a popping noise during crank rotation. It took me tearing down everything but the BB to realize I had to re-lube and tighen my egg beater pedals

    Pulling the cranks and cleaning the rings, cassette chain and derailers was worth doing though. The drive train is quieter and noticably smoother running.

  12. #12
    Time for a change. stapfam's Avatar
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    One thing I do on the Tandem every year is strip right down to the bare frame and then rebuild - checking every component as it goes back on. As a matter of course items like cables are changed but All the headset ever requires is clean and regrease. Now bottom brackets are checked before stripping by seeing if they are tight- In which case they need replacing- Or if they are loose- in which case they need replacing. In fact- They need replacing every year as they will not do two years with us.

    Problem with Bottom brackets is that they are a sealed unit. You cannot strip and regrease so if there is any problem with it- You have to replace it. The same is happening on headset bearings aswell but the Big plus is that neither of them are very expensive- If you have doubts about either- Then replace them.
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    Gorntastic! v1k1ng1001's Avatar
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    Quote Originally Posted by KevinF
    Five to 10k mlies? What are you doing to ruin a cartridge BB that quickly? I had a good 35,000 miles in a 1998 Ultegra BB; it got retired only because the bike did. My new bike has an FSA ISIS BB with about 8,000 miles on it (and rapidly counting). Nothing wrong with it yet.
    I have a '98 ultegra bb that had somewhere between 6k-7k miles when it died. It functioned when I retired it but there was definitely a noticeable grind. Maybe the difference is that I weigh 210+ lbs?

  14. #14
    half man - half sheep Doggus's Avatar
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    How do you regrease sealed cartridge bearings? I took my commuter apart and there is no way I know of to force grease into the bearings by hand.
    "The cycling community is so small that it is nearly inbred." - Steve Tilford

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    Ho-Jahm Hocam's Avatar
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    Quote Originally Posted by KevinF
    Five to 10k mlies? What are you doing to ruin a cartridge BB that quickly? I had a good 35,000 miles in a 1998 Ultegra BB; it got retired only because the bike did. My new bike has an FSA ISIS BB with about 8,000 miles on it (and rapidly counting). Nothing wrong with it yet.
    Rain baby.
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  16. #16
    Ho-Jahm Hocam's Avatar
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    Quote Originally Posted by Doggus
    How do you regrease sealed cartridge bearings? I took my commuter apart and there is no way I know of to force grease into the bearings by hand.
    There is no way, it's remove and replace.
    Race-o-meter:
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