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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 02-17-08, 03:54 PM   #1
99m6z28
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Loose BB

I recently bought a new bike and I have about 300 miles on it and the Bottom Bracket has gotten loose. So loose that I can spin the splined nut with my fingers. I don't have the tools to tighten it back so what do you think my LBS would charge me to tighten it? Also, is this very common?
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Old 02-17-08, 04:01 PM   #2
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If you bought it from the LBS, there should be absolutely no charge and they should apologize for having it come loose. If you bought it mail order or from a private party, I expect the LBS will want at least $10 as they will have to remove the crank to get to the bb cup. For about the same $10 you could buy the needed tool.
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Old 02-17-08, 06:16 PM   #3
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Also, is this very common?
Not common at all, if the bottom bracket was installed properly. In my 20+ years of riding, I never had one come loose.
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Old 02-17-08, 06:27 PM   #4
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Not common at all, if the bottom bracket was installed properly. In my 20+ years of riding, I never had one come loose.
+1. Torqued properly they should never come loose by themselves.
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