Originally Posted by
bulgie
A Thun BB isn't the worst thing possible, but it ain't great. And with that bottom bracket shell, you can't easily upgrade to a proper bearing style either, this frame is stuck with it.
I disagree, at least in the case of one Chiorda bike I worked on. Got this as a carcass missing parts and built it up as an MTB for my then-girlfriend, now wife. The BB shell was threaded Italian--with new looking white paint that had never had cups screwed in--so I only needed Italian cups to be able to install this Stronglight 99 crankset.