I'm not sure if some of you remember a while ago me asking where to source bearings from. I thought I may need to replace my bb soon and wanted to get a head start. I ended up with some nice NTN bearings I bought from hambini in the UK. I've tried looking around but can't seem to find good advise on how you know when it's time to replace them. I rode through a pretty epic rainstorm, one point being submerged up to my cranks in water. A few weeks later I'm hearing a slight click in my bb now. I pulled my cranks, cleaned everything up and notice that the DS bearing has the inner and outer races rotating. Is that a sign to replace? The NDS side still only spins on the inner race, there is no lateral play on either of them. There is the slightest feeling of roughness when rotating them. These are the stock green shielded FSA bb30 bearings that came with my caad12 that just went over 5000 miles. Am I just being too cheap, and should just throw in the new bearings I have anyway? I've got the proper tools to remove and press in the new bearings already.
Any advice would be appreciated.