I always felt total confidence in my brakes and I don't have front dual discs. The America has as good or better braking than any bike I've previosly owned. I wouldn't let that confuse which of a new 07 bikes to buy. They also have the same engine and gearing now - there is no difference in speed.
Chrome vs. black, seats, handlebars, wheels, and paint - pick the one YOU like best for appearance and riding comfort.
