One of my first accessories (in 3 whole weeks of ownership) was a "extenda fenda" it's a mudguard extension and stops most of the crud thrown from the front tyre hitting the engine.From BMW it's probably expensive,from Hein Gericke at cardiff it was £15,comes with self tappers and double sided tape/sealing strip-gotta be a bargain!
Also-fitted tonight,purely cosmetic-clear indicator lenses, (with orange bulbs) from "motor works",looks quite fetching on my "silver" adventure! £2 per lense and 85p per bulb another bargain?