My B5 has had...
Two 6203 rear hub bearings, first went at 4,200 miles, second at 17,600 miles.
Original chain replaced at 18000 miles, front and rear sprockets and a new chain fitted at 26,800 miles
6 new tyres plus oil and filter changes every 3,500 miles.
One blown side light bulb - replaced with an led as was the other side and the headlamp park bulb at same time.
New battery fitted as a precautionary measure prior to touring abroad.