What size tire is a B78-13 st?

What Size Radial Tires to Replace Existing B78-13ST Load Range B Tires on Boat Trailer The B78-13 tire you have corresponds to a ST175/80-13 tire size.

What does St stand for on a boat trailer tire?

Special Tire
Tires on boat trailers have to be ST tires which stands for Special Tire. ST tires are designed specifically for boat, car and utility trailers. They are built to carry heavy loads on non-powered axles and are rated for a maximum speed of 65mph.

Does St Mean trailer tire?

Special Trailer
ST, or Special Trailer, tires are intended only for trailers. ST tires must never go on drive or steer wheels. Their stiffer sidewalls are engineered to handle the tall loads of a travel trailer or fifth wheel on straights and in turns but not the stresses generated by steering and acceleration.

What size is ST175 80D13?

175/80R13 tires have a diameter of 24.0″, a section width of 6.9″, and a wheel diameter of 13″. The circumference is 75.4″ and they have 840 revolutions per mile. Generally they are approved to be mounted on 4.5-6″ wide wheels.

Can I put St tires on my truck?

The short answer to this question is – yes. However, it depends on the type of trailer, whether both the trailer and the truck are a similar size, and even more importantly, if the tires have been designed for the specific trailer position.

What is a St radial tire?

Special trailer (ST) tires are bigger, heavier and increasingly available in all-steel radial construction to meet the towing demands of more powerful vehicles and larger campers.

What is the difference between a St tire and a LT tire?

Because of the heavier construction for an equal volume of air space, an ST tire is designated to carry more load than a P or LT tire.” On top of the internal differences, the rubber used in ST tires typically has more chemicals that resist aging and UV rays.

What is an ST radial tire?

Special trailer (ST) tires are bigger, heavier and increasingly available in all-steel radial construction to meet the towing demands of more powerful vehicles and larger campers. “With the power of today’s vehicles, it’s normal to see them towing a triple-axle trailer in the fast lane passing other cars.

What is the difference between ST175 80R13 and ST175 80D13?

The D in 175/80D-13 indicates that it is a bias ply tire where as the R in 175/80r-13 indicates that it is a radial tire. The difference is how the steel belts inside are oriented. Bias ply tires are generally better in off road types of situations.

Can you use trailer tires on a pickup truck?

Can you run trailer tires on a pickup truck?

Vehicle tires keep traction and grip in mind during their construction, while trailer tires do not. This increases the risk significantly, especially at highway speeds or in poor weather. We don’t recommend using a trailer tire on your vehicle.