What size are my trailer tires?

What size are my trailer tires?

8 – 9 – 10 – 12 – Inch Trailer Tire Sizing

Older Size Tire Size Overall Diameter
4.80/4.00-8 16.1 inches
5.70-8 18.1 inches
16.5 x 6.5 – 8 165/65-8 16.5 inches
18.5 x 8.5 – 8 215/60-8 18.3 inches

What do numbers and letters mean on trailer tires?

Tire numbers and letters on a sidewall contain information about the tire’s size, maximum speed and load, age, treadwear capacity, and much more. You can learn all these details from three main codes: size code, Department of Transportation (DOT) code, and Uniform Tire Quality Grading (UTQG).

What ply are trailer tires?

Special Trailer Service Tires

ST-Metric Trailer Service Tires
Load Range Ply Rating Maximum Load Pressure
C 6 50 psi (350 kPa)
D 8 65 psi (450 kPa)
E 10 80 psi (550 kPa)

How many ply should camper tires be?

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. They are at least Load Range C, which means the sidewall is rated 6 plies.

How do I know what trailer tire I have?

‘ The first six to eight numbers indicate the manufacturer’s code, where the tire was manufactured and the tire size. To find out when your tire was made, look for the serial number that begins with ‘DOT. ‘ The last four numbers indicate the week and year your tire was made, respectively.

How do you read trailer tire codes?

Is 10 ply or 14 ply better?

So when inflating trailer tires be sure to go to the max psi. With that said the 14 ply tires will definitely hold up better than the 10 ply.

What is the difference between R and D on trailer tires?

The difference between the two trailer tire sizes is that the letter D in the first size you listed ST205/75D15 stands for bias ply and the letter R in the tire size that they put on your vehicle stands for radial.