Really? In the sense that they're hard riding over potholes, cracks, and uneven road surfaces and that they feel like a jackhammer on your hands and rear? I've heard Armadillo's feel like riding on solid rubber tires. At the recommended PSI, that is so true. A very rough ride. That's why I always run them at 15 PSI below the recommended 115-125 PSI. I read that Gatorskins offered the same flat protection, but with a cushier ride. I was planning on buying some Gatorskins as my next set of good tires.