I've posted about this problem before with a clicking problem on the bottom bracket.
The BB specs;
BC1.37 - 24T
It turns out, the clicking was NOT the bearings but the housing. The housing is not
a one piece construction like most bottom brackets but a 2 pieces pressed together.
The problem is, the pieces became loose and separated.
I finally replaced it with a Shimano 115mm shaft BB and it seems to work pretty well.
(a copy of this is also posted on Dahon's Forum)
Last edited by CrimsonEclipse; 11-24-08 at 10:48 PM.