If you're gonna be in mostly mud you will be fine. Its the rocks where stuff pretzels.

Ans there are definently obstacles where you need to spin the tires to get over it. I don't mean get the tires going 80mph in 3rd gear, but rather half throttle spinning in 1st gear 4lo is required to get through rough trails and it does break stuff if you have a meaty tire.

-Scerb

http://www.scerbfab.com/carb_faq.html