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Technical & Reference Section => Tech and Restoration => Topic started by: priv on March 06, 2007, 08:58 PM

Title: usa BB
Post by: priv 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

Title: Re: usa BB
Post by: theRuler 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

Title: Re: usa BB
Post by: RATTY 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:

Title: Re: usa BB
Post by: priv 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.


priv