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cookinwitdiesel
The tires are LoadStar Karrier KR35 which looks like they are made by Kenda and have no speed rating stamped on them.
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Your tires have a speed rating. Just about every ST tire manufactured in China in the past 2-3 were required to have speed letters. That’s right. The speed lettering system uses alfa lettters to identify different speed restrictions. For instance “J” = 62 MPH –-- “K” = 68 MPH --- “L” = 75 MPH and “M” = 81MPH. There is no speed letter for 65 MPH. ST tires without a speed letter on their sidewalls have a 65 MPH speed limit.
Some ST tire manufacturers mold “Speed Letter” “L” like that on the tire sidewall and it may be followed by the actual speed limit of 75 MPH. The more sophisticated manufacturers will use the a load index number followed by the speed letter that may look like this; 123 L or 123/119 L, the L being the speed letter. Your Keystone owner’s manual has pictures.
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