I am about to purchase a new Niner Rip 9. I am working to get a wheel upgrade. The bike has Stans Flow EX with stans hubs. From what I can tell they engage about the same as my outgoing Bontrager Rhythm Pro's and weigh about the same. I have been looking at the I9 torch trail $1200, Roval Control 29 carbon $1200, and DT Swiss Spline XM 1501. I am not really technical at wheels specs. Like I said $1200 is the max budget before trade in. I weigh 170lbs w/ gear. I concider myself a smooth rider (have not damaged many rims), I will be setting up tubeless with about a 2.3" tire. I would consider my terrain rooty, some rocks, no drops over 3-4'.