Thanks all. When I removed it just now to fit the replacement I noticed a lot of rusty gunk inside the BB shell and a bit of moisture on the BB casing itself. I guess that just comes with locking it up in the elements but I was a bit alarmed how much moisture had seemed to get in!
As tester alludes to, I've had a UN55 that's been left out in all weathers and ridden thousands of miles for years and years and is still seemingly good as new
Thanks all. When I removed it just now to fit the replacement I noticed a lot of rusty gunk inside the BB shell and a bit of moisture on the BB casing itself. I guess that just comes with locking it up in the elements but I was a bit alarmed how much moisture had seemed to get in!