I've been running the Swagman 4 bike rack on a 2" hitch on my XJ for two years now, and would definately reccomend it. Very tough and versitile, regardless of what type of bikes you haul. I've used mine for everything from 16" wheeled kids bikes, to commuters, to trials bikes, to full on DH bikes. Nice too, since the Swagman stuff comes in at about half the cost of a Thule.