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  1. #1
    I'm Carbon Curious 531phile's Avatar
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    bottom bracket issues

    3 out of 4 singlespeed bicycles that I have needs bottom bracket replacements. These BBs were all new. Shimano UN-53. (All square tapered) I'm about 170lbs. Anyone else notice that you wear out bottom bracket faser by going singlespeed? I climb some hills on my singlespeeds. Not super steep, but hills that will force someone fit to break a sweet.

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

  2. #2
    Senior Member barba's Avatar
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    How many miles are you getting out of a BB?

  3. #3
    I'm Carbon Curious 531phile's Avatar
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    500 max

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

  4. #4
    cab horn
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    Quote Originally Posted by 531phile
    500 max
    This has got to be a joke.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  5. #5
    THIS SPACE FOR RENT
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    chain too tight?
    "I don't buy new frames, it just encourages them."

    -T.G.

  6. #6
    Senior Member
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    Quote Originally Posted by Landgolier
    chain too tight?
    I got my first FG last year and killed my BB after 2 months, had the chain very tight at first.
    Bikes > Cars

  7. #7
    Senior Member barba's Avatar
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    Quote Originally Posted by 531phile
    500 max
    Something is wrong. I would expect more than that with a BB on a department store bike. Are you installing them?

  8. #8
    MFA jjvw's Avatar
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    You are doing it wrong. You should be getting 5000 and then some.
    <---------------------------------------------------------------------I once caught a signature THIS BIG--------------------------------------------------------------------->

  9. #9
    elite
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    i bet your chain tension is hella tight.

    i did the same thing- i rigged up a fg with vert drop outs by filing them down a little, and i always rode with the chain tension rock solid. my chainring bolts kept coming loose, but the real problem was after a while i got this creak that wouldnt go away. i found out i had crushed at least half the bearings in the bb, because my chain was pulling on the thing with about 100 n/m of force.
    http://img386.imageshack.us/img386/2...ressbareq7.gif

    if you are a mac n00b, copy this and paste it into your own signature

  10. #10
    20-Something Desk Jockey andypants's Avatar
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    500 is weak. I've been running a campy veloce BB for over a year, and it's a pretty cheap one. I ride about 50mi/week.

    I'm going with those who cry chain tension.

  11. #11
    I'm Carbon Curious 531phile's Avatar
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    Yes, I am running tight chains. I'll look into half links or just position the rear wheel a bit closer.

    thanks for the input!

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

  12. #12
    I'm Carbon Curious 531phile's Avatar
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    trackstar your signature is making me very anxious. NOT digging it.

    Quote Originally Posted by avner View Post
    I loled. Twice. Then I cried. Then I rubbed one out and cried again, but thanks for sharing.

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