Nope. From my own recollection this is a dated nomenclature, verified by Wikipedia: "Prior to 1991, tire speed ratings were shown inside the tire size, before the "R" "construction type. The available codes were SR (112 mph, 180 km/h), HR (130 mph, 210 km/h), VR (in excess of 130 mph, 210 km/h)." https://en.wikipedia.org/wiki/Tire_code
Originally Posted By: SubLGT
Speed ratings on the sidewall are designated by a single letter, not by two. It is V, not VR. It is H, not HR. It is R, not RR. You are the only person on the planet who uses 2 letters to designate the speed rating.
Originally Posted By: ExMachina
VR means the tire was tested to 149 mph speed, and HR to 130 mph, and it does indicate how tough the tire is. Its a speed rating. Not load rating. Its how much margin it has structurally during heat build-up and stress.
Originally Posted By: krzyss
VR, HR - the R means radial, it is not any speed or load rating, just construction. Nowadays it probably could be skipped for any car tire. Krzys