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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 11-03-00, 01:41 PM   #1
doyledklegacy
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Hey I'm building a bike, and I was wondering how you install a bottom bracket for a 3 piece crank. Do you need a press or can you do it yourself? I have a 20" BMX frame. It seems as it will fit, but I just don't know how to intall it. I have enough tools so that I would be able to do something with it.
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Old 12-15-00, 07:12 PM   #2
Psyco DH Rider
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All you need is a cup press(the tool you need to install headsets properly), a little bit of grease, a good alignement of the cups.

Alex
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Old 12-20-00, 11:19 AM   #3
Xavier
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No tools needed

If you do not have the proper tools it still can be done.

Get a big vise. 2 block of wood and perss the cups.

I do not reccomend using grease but you will get both sides here.

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Old 02-10-01, 11:20 AM   #4
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Instead of the cup press or the Clamp, I would greese it then take a rubber mallet and tap it in *assuming the bearings are sealded* if there not try sliding the cups in and when you tension up the cranks Make sure the bearings are in proper or you'll crush them
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