Do Trailer Tires Have Speed Ratings

Updated 01/30/2020 | Published 06/25/2015

Question:

While religiously keeping tires inflated to max cold inflation and trailer load well within load ratings have continued to experience more than reasonable blowouts and separations. Have tried the usual Carlisle, Marathon, and Triangle with similar issues. Axles/Bearings/Suspension in good shape. Had strongly considered trying passenger or LT tires but I see you do not recommend them due to the sidewall construction. Trailer is a Featherlite with 225/75r/15 I do expect to be able to run 70 mph if speed limits and conditions allow....is the speed an issue? Thanks

asked by: Larry S

Helpful Expert Reply:

Speed is a huge issue with trailer tires actually. Unless otherwise noted trailer tires are rated as 65 miles per hour as their max speed. Exceeding the speed rating will cause the tire to heat up and fail easier. We do have a couple brands that have higher speed ratings. The Taskmaster radials like the part # C22515D which is an ST225/75R15 like you mentioned has a speed rating of 81 mph.

The Lionshead part # LHWL304 has a speed rating of 75 mph and has a 2 year roadside assistance program that comes with it.

If your RV or trailer has a flat tire, call the help line and a technician will come change the flat for you. You can call 24 hours a day, 7 days a week, and 365 days a year from anywhere in the United States, Canada, or Puerto Rico.

Another cause for tire failure is over-loading them.

I attached a help article on trailer tires for you to check out as well.

expert reply by: Jameson C

Bob

1/29/2020

I have a 2004 Triton 12 foot enclosed snowmobile trailer. It has 205 65-10 loadstar tires on it, thats a load range C. I was looking to replace them and after seeing posts on load range. C is 37 mph? Both tires are the same size but one says 35 PSI and the other says 50 psi. Can you help? Thank you.

Jacob H.

1/30/2020

The Loadstar 205/65-10 Load C tires # AM3H400 that we carry state that they have a speed rating of 81 mph ( speed rating M). If you have two different tires, I would recommend replacing one or the other so that they are the same.