Lol, i've never seen so much bollocks in one post! One wheel drive and will still outrun most cars on the road. Engines are well capable of running over 50k. Most commuter bikes have this kinda mileage and maybe more. You'll regularly see Pan Europeans and GS's with 100k on and still going strong. The only legal requirement is a helmet, the others are just optional. As for weather or roads? Take a look at the IOM TT.