I'm restoring a 1989 Bianchi Giro d'Italia. I removed the Campagnolo Athena BB and would like to replace the cartridge bearings.
The trouble is, I'm not sure how to go about it. I'm familiar with the IRD type in which the bearings can essentially be "pulled" off of the spindle after the cups are removed, but this looks different to me.
I read that this BB has two bearings on the drive side and one on the non-drive side. Any help is greatly appreciated.
I don't have a photo of the actual BB, but here is a photo from Velobase.
