I am planning to get a motorcycle soon. I am about 5'11", 235#. I have no riding experience, so I am thinking about getting something around a 600 which I hope will not be too small, yet big enough that I won't grow out of it in less than a year. (Any suggestions on this are welcome). The Suzuki 600 has a single engine, the Honda 600 has a twin. If both bikes have the same miles on them, has the single engine worked twice as hard? Is this something that should be considered, or is it purely academic?