I think a X2 would pull/push harder because more weight is a advantage when pulling or pushing. My Big Bear pushed snow better with heavy sand **** on the rack then without.
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2001 Yellow SP 500
No ECM
No Plastic roller cage
5.25 gal tank.
My x2 was heavy indeed and some times that would go against it. There were many situations when it just sunk in the mud and had to be winched out. When I installed a set of mud lights on it, the atv was much better.