nomax said:I have or had both, get the 450 over the 660.
The front end on the 660 is light, it is physically larger than the 450, the 660 does have a softer seat.
In the dunes there is no comparison between the 450 and the 660
On the trails they say the 660 is better but just change the front sprocket on the 450 and you now have all the low end lug you need.
If you're racing the unlimited class, then why stop at 660cc? Just put a street motor in it, beat all the 660ies and 450ies, and get great fuel economy!jt911 said:Not totally true. I witnessed a stock 660 destroy a 450 up Sand Mountain in Nevada everytime.
The old saying"there is no substitute for dispacement" will win.