I just got my NuAirs on last night. Dam they are heavy. I probably added 500 pounds to my ROC. I noticed the same thing on the holes. The holes don't squat like Galaxy said they would. I even rocked the entire machine on its tail and the holes in the rear tires did not squat. The ride is very close to regular tires. I think if you did not know they were Nu Airs you would think they were regular air tires. Here is my only issue so far with the Nu Airs. I am concerned about the width. They appear to be more narrow than a standard tire. I should have caught that. My 465 is borderline too heavy for 12X16.5s. Now I am riding on even a more narrow tire. I am not happy about that. I will see how well they work but I think I will sink in soft material. Did I say these tires were heavy.