Most of the people on my RV forum have moved from ST to LT trailer tires. They claim these tires have a higher reserve load capacity, better construction and much lower failure rate. The failure rate of ST tires appears to be substantially higher.
My tire guy says if I get pulled over by traffic enforcement I will be fined for illegal tires. Have you heard of this?
Sidewall Markings on ST and LT Tires
Special Trailer Tires
I have no experience using special trailer tires that I know of, but they appear to be the best choice for trailers according to my research.
Choose radial ply tires for trailers used regularly and for long distances and bias ply tires for the utility trailer that you only use on the odd weekend.
Load Capacity
Special trailer tires carry more load than a comparably sized passenger or light truck tire too.
Reduced Trailer Sway
The biggest plus for these tires appears to be stiff sidewalls that cut down on trailer sway and reduce the chance of a blowout. They will also track straighter.
Proper Inflation & Loading
If you keep special trailer tires (or any other tire for that matter) properly inflated and make sure that they are not overloaded, they should not fail at a higher than normal rate compared to other types of tires.
C.S.A. Standards
Finally, you won't run into trouble from the law if you use special trailer tires on your non-commercial trailer in B.C. if they are marked according to C.S.A. Standard D 238.1, entitled "New Pneumatic Tires for Passenger Cars."
Professional Advice
Your tire service professional should be aware of this marking and will be able to guide your purchase accordingly.
Learn More
- Product Service Bulletin - Goodyear Marathon Special Trailer Tires
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