46 yo female, mechanically inclined, rides with experienced boyfriend on his sport touring mc. loving it and want to get my own now. i have tested smaller bikes and was unhappy with the power and the choppiness of those bikes...guess my rides on his bike spoiled me but at my age..i want something comfortable, smooth and able to keep up with him without using full throttle. came across a bmw k75c (86) garage kept with only 4500 miles! mint condition...whatdya think...? bike is a beauty. i am 5´6´´ tall and medium to average in wt. too much bike to start on or can i adapt quickly?