I'm swapping out BBs on my '93 XO-2. When I thread in the drive side it goes in no problem. Then I go to thread in the non drive side cup and it will not thread in all the way. It is sticking out about 1 full thread. I removed the NDS cup and then the drive side BB. Then just out of curiosity I installed the NDS cup independently and it did thread all the way. So, knowing it's the the not correct sequence, I the tried threading in the DS BB with the NDS cup already in and it would not thread all the way. This is a shimano cartridge type but that Riv sells, 1.37 X 24 which is the same size but not type as the one I removed. I know it's important to have the BB threaded all the way but read that the cup cab stick out a bit but I'm just not comfortable with that. FWIw this is a NOS frame so no mangled threads or rust. Thanks in advance!
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