How do I identify my trailer tires?
The first number in this size is the width of the tread, the second number is the size of the rim that it mounts on. Large size trailer tires are made up of three numbers. For example, a common trailer tire size is ST225/75R15.
What size tires go on a trailer?
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 |
How old can trailer tires be and still be safe?
Even if the tire tread has plenty of depth left and you can’t see any cracking with the naked eye, the generally accepted rule of thumb states that trailer tires should be replaced after about 6 or 7 years. Yours are about twice that age.
How old are my tires?
The chronological age of any tire can be found on the tire sidewall by examining the characters following the symbol “DOT”. The last four numbers identify the date of manufacture of the tire to the nearest week. The first two of these four numbers identify the week of manufacture (which range from “01” to “53”).
What do numbers and letters mean on trailer tires?
The first number, 205, refers to the width of the tire in millimeters. The second number, 75, refers to the tire’s sidewall aspect ratio (also called section height) and means in your case that the aspect ratio of your tire is 75% of the tire’s width. The R letter indicates the tire has radial construction.
Can you put different size tires on a trailer?
An important point of consideration is when using two different size tires, the load has to be no more than the capacity of the lowest rated tire. With this substantial difference with both weight capacities and inflation levels, the chances of inadvertently overloading on the smaller side tire is quite possible.
Can I use truck tires on a trailer?
The dangers. When a car or truck tire is used on a trailer, it causes stress that the tire wasn’t designed to handle. The tread of the tire begins wearing differently than it was designed. The tire’s actual weight capacity is different from the load rating shown because of the different frame designs.
How old are my trailer tires?
How do I determine the age of my trailer tires? Every tire has a date code stamped on the sidewall, which is the date the tire was manufactured. The date code is usually at the end of the DOT I.D. and is a 4 digit number. The first two numbers indicate the week (out of 52) and the last two digits indicate the year.
How do you date old tires?
The first two digits of the date code tell you the week that the tires were built, and the last digit tells you the year. For example, a date code such as 306 would let you know that the tire was built in the 30th week of a year ending in 6.
What does a letter D stand for on a trailer tires?
The letter “B” stands for bias construction, and the letter “D” stands for diagonal construction. Consequently, both mean the layers run diagonally across the tire.
Can I use car tires on a trailer?
Never use passenger tires on a trailer. They are usually rated Load Range B, a 4-ply equivalent, because their sidewalls are flexible for a smooth rideāfar too flexible for trailer duty. They are not engineered to stabilize heavy loads or to handle the temperatures that build with them.
Can I put truck tires on my trailer?
Expert Reply: Light truck tires (LT) are sometimes used in RV applications but generally not on utility trailers. Light truck tires are a type of passenger vehicle tire and as such they are not built with as thick of a sidewall as trailer tires. A thicker sidewall allows a trailer tire to handle more vertical load.
How do you tell the date of manufacture on a trailer tire?
To find your tire’s date code, identify the code on the tire that begins with ‘DOT’. The ‘DOT’ should be followed by a series of four letters and/or numbers. You will find the 4-digit date code following this set of letters and/or numbers. It will be a 4-digit code containing all numbers.
Do trailer tires have date code?
How do I determine the age of my trailer tires? Every tire has a date code stamped on the sidewall, which is the date the tire was manufactured. The date code is usually at the end of the DOT I.D. and is a 4 digit number.