Had a lot of these hit or miss pop up showers in my part of the world lately. I got "hit" a couple weeks ago on a club ride, and did about 15 miles in some pretty blinding rain. I know that I need to do some drivetrain maintenance, so i went ahead and cleaned that part pretty well. RD, FD, and chain. However, I have been picking up a ticking sound that I believe is originating from the bottom bracket. Its one of those Shimano style ISIS BB's. Standard issue stuff. Does the BB need to be removed for a proper rain ride cleanup and to rid myself of the annoying tick?