There are at least 5 people on here that have had a ton of problems with elka. Someone else said there customer service sucked, and I agree. While many say they are great, I don't think they have the rzr figured out yet. I hate my elkas and regret the day I put them on.
If you can't ride a machine with the setup you want on it, don't spend the money. Not worth it.
Another point against elka is that when you want (need) to have them revalved, respringed, retested to figure out why they ride like crap, you will have to pay extra, and ship them internationally. All of which ads to the delay and your frustration and cost.