or even little bitty trail bikes of any kind. No guts, no glory, right? Right. Edwin's riding a little 50cc Honda Express SR, all the way from the early 1980s. And Steven has a newer UM Matrix 150 ...

Built as a trail bike that works well in busy cities, Chappy sits low on tiny wheels, has a 50cc two-stroke engine, and zips through and around anything with ease. This bike straddled the line ...