DK35vince
Super Member
Agreed.Pioneer 500 - yes, Mule Pro FXT nope. Really depends on the SxS width more than anything.
I have a side by side and an ATV.
The side by side is more stable simply because its wider. (SxS 60" wide, ATV 50" wide) If they were the same width I doubt there would be any difference in stability.
95% of my riding on our quad was 2 up with my wife on the back, so not sure where the can't carry a passenger on a quad comes from. Many Mfg. make 2 up models.
That said we do prefer our Polaris RZR side by side for trail riding. Selling the quad.