I have done some reading, and quite a bit or research. Still a bit confused.

I have a bone stock 2013 RZR 800. with the factory 8 spoke aluminum wheels.

I want to replace my tires, and have been researching and re reading the threads on here. I am just looking for clarification.

I want to stick with the stock wheels

If I go for the 26 inch Bighorns 26X9-12 and 26X11-12 I will need a minimum of a 1.5 inch spacer on the rears to clear the motor mount?

What about if I stick with original sizes in the bighorn? 25X8-12 25X10-12, will I gain any height since the bighorns seem to run taller? Would I need spacers?

Seems there are a lot of copycat Bighorns out there Traxion Grippers / STI Rocktane. Are they direct copes? Do they fit better?

Thanks for the help.