Quote:

Can I get a Speedmaster with America bars?




If you're buying new you can have whatever you want (at a price of course).

Main differences between the two...
handlebars & risers: SM has drag bars with taller risers, america has pullback bars with shorter risers
seats: SM has "gunfighter" seat, america has saddle & pillion pad
brakes: SM has dual front disk, america has single
wheels: different styling
pipes: SM has slash-cut, america has tapered
engine panels: black on SM, chrome on america
paint: different styling for the two models

All the parts a available as accessories and will fit either bike, so effectively they're the same bike with slightly different options. Mechanically the only real difference is the brakes so if you don't care about styling you only need to ask yourself if you want to spend the extra money on the extra disk. However if you're not interested in styling, why're you buying a cruiser?