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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  usa BB
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Author Topic: usa BB  (Read 487 times)

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Offline priv

  • Flip-Whip
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usa BB
« on: March 06, 2007, 08:58 PM »
The metal cups on an unsealed usa BB is it a case of hitting the cups out of the frame or do they stay in?

and if you remove the cups when installing a new sealed BB do they have a lip on to stop them going too far into the frame?

basically i'm after advice on removing and fitting usa BB"s

the only BB's i've removed were on a MTB euro ones and they screwed in.

cheers.priv

theRuler

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Re: usa BB
« Reply #1 on: March 06, 2007, 09:00 PM »
hit them out

the lip stops em going in too far

you can fanny around with clamps n shite but a block of wood and a hammer is fine for hitting in unsealed bearing cups

Offline RATTY

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Re: usa BB
« Reply #2 on: March 06, 2007, 09:01 PM »
Bang the cups out mate, they are tight but push fit. The new cups will go straight in the hole, may need some help with a rubber faced hammer if they are tight :daumenhoch:
A long time ago, in a land far away!

Offline priv

  • Flip-Whip
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Re: usa BB
« Reply #3 on: March 06, 2007, 09:04 PM »
thanks for the quick response men, i better get looking in the forsale/wanted now for a cheap light bb/and cranks.


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