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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 04-19-05, 01:32 AM   #1
dansweet ss
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Single speed bottom bracket !%$?HELP??

Hi i've converted my bike to single speed, and recently started hearing clicking/knocking sounds coming from my bottom bracket, i took off my cranks and moved the axel of my bottom bracket. It was moving up and down by about 2mm! I obviously need a new bottom bracket, but what shall i get.
Requirements-
Square taper
Hard wearing (for jump bike and single speed)
Affordable

Product names and numbers would be much appreciated!!
thanks
dan
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Old 04-19-05, 02:45 AM   #2
mr_tom
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The cheap Shimano sealed ones. UN53/73. They're not the hardest wearing, but they're so cheap that it's no biggie if you tear through them at a rate of knots.
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Old 04-19-05, 08:17 AM   #3
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second the cheap ones
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Old 04-19-05, 08:33 AM   #4
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Are you sure your bb didn't just need an adjustment?

Enjoy
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Old 04-19-05, 09:38 AM   #5
ofofhy
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If it was a loose ball BB, could one the cups been loose?
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Old 04-19-05, 09:44 AM   #6
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On my SS MTB I was going through a UN72/UN73 every 3-4 months. Switched to a RaceFace and it lasted longer, probably 9-12 months and you can replace the bearings. Might step up to a Phil soon. Not much left in the way of bomber square taper stuff, I was searching the other day.
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Old 04-19-05, 11:18 AM   #7
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Mines making noises too (UN53), and it barely has 300 miles on it. I'm going to take everything apart, re-grease and tighten tonight. The noise is the most annoying noise ever.
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Old 04-19-05, 12:24 PM   #8
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Be sure to grease the threads. Most of my noises came from not doing that.
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Old 04-20-05, 12:41 AM   #9
dansweet ss
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well the axel is moving up and down pretty freely, but i'll remove it when the tool arrives, have a look, see if i can do anything with it, if not i think ill go for the shimano UN53/73.
riderx- what model was the raceface bottom bracket you wer using and was it square taper?
cheers for yur help
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Old 04-20-05, 12:44 AM   #10
dansweet ss
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also how do you remove the lock ring from around the bottom bracket or do you just use the bottom bracket tool straight away?
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Old 04-20-05, 01:51 AM   #11
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im running a race face dh bottom bracket

thing is got damned bomb proof

i went through 4 cups nad bearing setups and 2 cartridge before someone donated this race face one to me for all the trouble i was having with bottom brackets...been riding it going on a year in may...through the winter too!

its a square taper by the way and adjustable from 68 - 73 mm if i remember correctly

this is actually a newer version of what im running
http://www.speedgoat.com/product.asp...t=25&brand=199

Last edited by napalmandroses; 04-20-05 at 01:58 AM.
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Old 04-20-05, 04:52 AM   #12
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Quote:
Originally Posted by dansweet ss
riderx- what model was the raceface bottom bracket you wer using and was it square taper?
cheers for yur help
It's square taper, steel axle, Taperlock is the name. $60 @ Speedgoat.
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Old 04-20-05, 09:04 AM   #13
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ok cheers for the help m8!!
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