Nearly did a Steve-style lowside this morning. Happily pootling around the square-about south of Chelsea Bridge - dry road, no gravel, paint or small children, flat camber, "even" throttle - and the back wheel let go! I hardly even had my toe down. It's not even as though I haven't used that bit of tyre before. Anyway, a big wiggle and a countersteer later it settles down again. Really don't understand what went wrong there - any ideas? Oh, and I saw a flat fox on Battersea Bridge North road.