ATV Wheels & Tires 27″ STI Roctanes/14×7 MSA Battle’s on 850 XP May 19, 2015 Here’s my new wheel/tire setup on my 2014 850 XP, 27×9-14 and 27×11-14 STI Roctanes on 14×7 MSA Battle’s in +30 offset (5+2). Had them out on the weekend and they ride pretty good for an 8 ply tire, had them at 10psi. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related