depends on what you want and where you ride, for me, NE PA, machine barely ever gets over 3rd gear on the trails where I ride, I don't rock crawl, I don't need more travel, I need better and smoother suspension - doesn't mean the R won't work, for me, I just didn't see the need to spend the additional cash, enjoy a tighter turning radius, fits between some very close trees that the wider machine take the bark off of, etc.
where I can open it up, the speed is determined by the size of the rocks embedded in the hard pack and how fast you want to hit them. conversely the wide open haul roads don't require a lot of suspension travel
it is interesting how an $18K 100HP X can keep up with a $25K+ turbo 200HP canned ham and have to stop and push them over the sharp humps or wait for the 3 point turns - I just can't beat them in a drag race