These tires are rated at 106 weight which is 2000 lbs prox and v rated which is up to 149 mph. They are on a Hyundai Caligraphy with awd and a 2.5T engine. The car is better than some of the muscle cars I had in the '60s. So, maybe the reason it rides hard is the tire is stiffer to handle a bid load and high speeds. Of course I do not go 149 to that is wasted. I am unhappy with the ride. Seems to be stiff, particularly when it is cold. The mfgr states TP should be 35 lbs, so that may be a little high for that size sidewall. The tires I took off were 255/40R 20, and rode very hard. In the '60s, we kept tires inflated at 32 and maybe that is what these tires need. Anyway, after new rims and tires, I am worn out on replacing, so what is, is on these and I am stuck with them for the future. Since I only drive 5,000 miles a year they should last me 10 years. I took them to a fairly steep hill in the pouring rain and slammed the accelerator and with awd the car took off like a rocket, so grip is outstanding.