Man this is a fun sport! Now my wife wants to ride on her own. What would you guys recommend for a very light framed woman? (103 lbs, 5'5"). I am assuming anything we make street legal wouldN't run highway speeds very well? I Was thinking something in the 80 - 100 size range, but since I too have just gotten into bikes I really don't know very much about what's out there. Any suggestions. We ride 50/50 onroad/off road.