hey amullo, what's the new design engine you speak of? i thought all 748 had the desmoquattro donk? either way, if you like to rev em (and if you're into 748s you must) the R is the way to go for sure. what a bike!
I know the R is the best one I was wondering between the three I had listed since I cant afford the R I just wanted to know the differences between the others. Thanks for all of your replies now I know what I'm looking at.