Singlespeed & Fixed Gear - bottom bracket issues
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05-24-07, 08:59 PM
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.
How many miles are you getting out of a BB?
05-24-07, 11:39 PM
05-25-07, 12:10 AM
This has got to be a joke.
05-25-07, 01:08 AM
chain too tight?
05-25-07, 01:29 AM
chain too tight?
I got my first FG last year and killed my BB after 2 months, had the chain very tight at first.
Something is wrong. I would expect more than that with a BB on a department store bike. Are you installing them?
You are doing it wrong. You should be getting 5000 and then some.
05-25-07, 08:35 AM
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.
05-25-07, 10:13 AM
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.
05-25-07, 11:33 PM
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!
05-25-07, 11:36 PM
trackstar your signature is making me very anxious. NOT digging it.
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