Important background. I was born in Townsend Montana back in 1955 but moved to Bismarck ND until I was 6yrs old. Then moved to Milwaukee WI. My dad had a 1973 350cc Harley Davidson Sprint which I drove from 14yrs old to 16yrs old. I also shared a 1973 Norton Commando 850cc with a high school friend. I bought a 350cc Honda CB in high school and rode that for a couple years until a car (that I had eye contact with) pulled from a stop sign on a side street and hit me broad side while I was on a highway. (3) breaks (3) fractures fibula and tibia and a crushed ankle along with a concussion and a sub-dural hematoma. Cast for 6 months and pins in the knee and ankle. I got married, had kids and then at age 60 I got Multiple Sclerosis. I lived with it for 4 years and then after 40 years of marriage my wife wanted to "do something else". So... She divorced me. My MS has now stabilized to the point I have occasional balance loss while walking. I have driven my jeep from Milw. to mid-North Dakota and back in a weekend (for a funeral) but I have given up scuba diving (certified open water), bungee jumping, rodeo clowning (certified American Bull-fighter), Karate (certified Purple belt in traditional Shorin-Ryu Okinawan Karate), Non-related bone marrow donor, blood donor. Now I am thinking of going back to motorcycle riding. I have a person interested in selling me his very nice 1964 Norton Atlas 750cc but I don't know if I want to work that hard to maintain a British bike. Another person wants to sell me his mint 1987 BMW K75S (52,000 miles). My questions are (with consideration to all of the above) A) should I even consider going back to motorcycling at all with the MS in mind. B) the BMW is very tempting and even if I bought it I could resell if it became a problem; but I am 6ft 1inch tall and when I sat on it (on the center stand) my toes touched the ground but I would want to ALWAYS have both feet firmly on the ground. My balance issues are only when I am exhausted by over-exertion. I hesitate to test drive someone elses bike but I am sure that I would be good if it was my own bike. AM I CRAZY for even thinking about biking again. My strength is excellent and I do not appear to be getting any worse. Looking for honest feed back. I am thanking you in advance.