the rubicon has a bigger motor, it has a 499 and the foreman has a 475. not enough to even pay atention to but i thought i would tell you. i had a 03 rubicon, all modded out and everything. it was a really nice bike but IMO the auto tranny was not great at all. some people like it, some people hate it. the tranny went out on me at about 4200 miles, thats alot of miles but i rode every day. it was a good work bike and it still had enough power to play around with if you wanted to. i will never buy another auto honda, if i would buy one as of right now i would go with a manual one, 100% positive i would. im sure you get alot of replys on this topic.
-Aaron
-Aaron