In addition to the skinnier back tire, the tourer's motor was retuned. A little down on power.
The Roadster is new this year and they are billing it as a muscle bike not a cruiser. Kind of like a S3 on roids. As such the pegs are moved back to a mid mount position.
They should be quite different bikes. I think if you are going for bags and a windscreen, the tourer is the one. If you don't like the floor boards, you can swap them out. Way cheaper than getting hard bags and a screen.
