Todd W.wrote a review of Kreitler Challenger 3.0 Rollers on April 23, 2018
Familiarity: I've used it once or twice and have initial impressions
I heard these are some of the best rollers, so I picked them up when there was a discount. I was concerned if I had the power to ride the 3.0, but have no problems. I have them on carpet with a mat on top and they are quiet. I set them up in a doorway on my first ride to avoid crashing which was helpful to get comfortable on them. Only took a few rides to be able to ride them without needing the door for support.