Went to clean the filthy commuting bike and replace the cracked rear mudguard but found the rear hub wasn't turning smoothly; the RH locknut had come loose. Was fine last time I tightened the chain, about two months ago. Anyway, the hub is now all in bits as a precaution, something I've been meaning to do for a long time. It's a Sturmey-Archer SRC3 (3-speed and coaster brake) and it was all clean and apparently unworn inside. Even the brake shoes look barely used; I was expecting them to be knackered after 2.5 years of almost daily use. Currently marinading in paraffin and then it will need cleaning, drying and three different greases (!) to put it back together. Normal grease for the bearings, special SA brown runny grease for the gears and Ceratec brake grease for the coaster brake. I imagine it all mixes toigether eventually, but it' the thought that counts. I have a set of three new ball races for it.