Wassup Guys. I just bought a DT Swiss wheelset with 440 hubs and 6.1D rims. They are the same ones Peaty and Rennie are running in the UCI World Cup. Anyway they are really Bad Ass. They are super light and super smooth. I am running them on my Intense Socom and they are really fast. I have only ridden them about 3 times and yesterday upon regular inspection of my bike I noticed 3 good size dents in the rear rim. They aren't that bad but I was really suprised because all I have ridden was some semi rocky DH trails, nothing to knarly though, so I don't know what the deal is. I run Maxxis Minions front and rear and have run Mavics on all my other bikes in the past and I've never had this problem.