I have an 08 Reign X also. It has the Air 5.0 and I love it. It came with the DHX 3.0 coil, which, no matter what spring I ran, I couldn't dial in the way I wanted. I like the faster adjustability of the Air, but so you know, you'll have to trim the propedal lever on any DHX air shock 09 or newer. It won't fit through the "glory hole" when pointed down otherwise. A little grinding with a dremel fixed it for me.
I have a ? for you though. That bike should have come stock with a 7.875x2.25 shock. I'd be curious to know why yours had the 2.0 stroke. That came on the regular reign, not the X, so I wonder if somehow you got jipped.
I have a ? for you though. That bike should have come stock with a 7.875x2.25 shock. I'd be curious to know why yours had the 2.0 stroke. That came on the regular reign, not the X, so I wonder if somehow you got jipped.