As for the holes in the frame, you'd normally use a plastic sleeve on a non-sealed Campag BB to protect the bearings. You can usually get them from eBay for not a lot of cash. Later Campag BB cups are rifled to help shred any water that has got inside.
As for the holes in the frame, you'd normally use a plastic sleeve on a non-sealed Campag BB to protect the bearings. You can usually get them from eBay for not a lot of cash. Later Campag BB cups are rifled to help shred any water that has got inside.