RZR 4 900 UTV Giant Roof vs Spike Powersports Roof November 25, 2015 I’ve narrowed down my roof selection to these two. Both are about the same price. UTV Giant is aluminum and the Spike roof is poly. For those that have them, pros and cons for both? UTV Headquarters – Polaris RZR 4 900/1000 Hard Roof RZR1000-4 & 2015+ RZR-4 900 Roof – Black Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related