NY,
I just got back from Coal Creek/Windrock in Tennessee. I have stock gears with 33x12.50 TSL Radials and I never had a problem with running out of motor. I went up a very steep hill that a sammy couldnt because he bogged down and he had 31's on his. I will put gears in mine but now I know I can do it when I get a chance. Youll be able to hit most trails with no problem with stock gears.
Later,
Bill