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i have a very nice tig welded bike. it was a xc team bike, it's equipped with Shimano str group set from the late 90s. it's in good conditions
BUT
it was a nightmare to unscrew the bottom bracket. The steel cartridge and the aluminum bb shell galvanized and it was a PITA.
I noticed that the bb shell has no drainage holes, so, every bit of moisture from the rest of the tubes gets stuck there.
should i drill a hole in tur shell, or the manufacturer didn't do that for some good reason they I can't see?