I am a total motorcycle person but saw the youtube video on the Stealth Bomber and fell in love with the idea. Being female has some disadvantages in the strength department so I would love a lightweight motorcycle but love the idea of being able to ride on bike trails. I am too old to go too fast so speed is not a big issue but I do weigh 160. Is there a less expensive bike out there (already assembled) that would be great for off-roading? Thanks in advance for your help.