I have just over 1100 miles on my set and love them. They are very smooth and give a great ride. They live on my P2SL and while most of the roads that I ride on are pretty smooth, I have ridden on some terrible patches of road during long rides and they have held up great. I'm not a wheel expert but these things limb well, descend well and roll like the dickens on flats. They just purr along.