I have a 2006 MDX touring that I have placed a set of them on about 3 and a half years ago, with nitrogen in them. They are a nice compromise tire but dont expect to drive it like a good handling car. Also when new the tires have a bit of a squirm until you have about 5000 miles. I run them about 34 psi all around and have gotten 40000 on them and expect another 35000 miles. They are not something you want if you want a high speed handling tire. I always keep the factory rim size,it was the best compromise and gives good ground clearence. the tires are good they do ride harder then the Michelins that came factory new, but that is due to the truck load rating which also means the belt plys are more than a passenger car type tire.The ones I have have a 3 ply sidewall making them much stiffer than a single ply. That is why it rides stiffer but it will still break traction if you go fast. That is something you should consider besides speed ratings, the load carrying rating, the MDX is not a truck and these tires are actually good for trucks, as for ice the OEM was best but snow,mud,dirt,general road hazzards they are good.