How do I know what size my RV tires are?

Simply read the numbers off the sidewall of your current RV tire. The most common tire sizes will have three parts, just like the 205/75-R15 tire pictured at right. This number will tell you the section width, the sidewall aspect ratio and the diameter of the wheel.

What size are my RV tires?

13 – 14 – 15 – 16 – 17.5 Inch Trailer Tire Sizing

Letter Size Metric Size Rim Width Range
H78-14 J78-14 215/75-14 5-1/2, 6, 6-1/2, 7
8-14.5MH 6 inch
F78-15 G78-15 205/75-15 5, 5-1/2, 6, 6-1/2
H78-15 J78-15 225/75-15 5, 6, 6-1/2, 7

How do I measure my RV spare tire cover?

You can either measure across your spare tire (edge to edge across the center) to determine it’s diameter or you can find your tire size in the following Adco Spare Tire Cover Chart. Spare Tire Cover Size B – 32-1/4″ diameter fits: 7.50 x 16.

Are all RV tires the same size?

Size Matters



There are multiple different types of RV’s, and there are multiple different types of tires that each of those RV’s may use, so in the case of RV tires: size DOES matter!

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How tall is a 15 inch trailer tire?

What is the Height and Width of a 205/75-15 Tire on a 15 Inch Trailer Wheel. Expert Reply: The 205/75-15 Tire and Wheel Combo, # AM32395, is 8.1 inches wide and 27.3 inches tall. An F78-14 tire and wheel will be about the same width but it will be 1 inch shorter.

Does spare tire size matter?

Because it is designed for use strictly in emergency situations, your spare tire will have very little tread and only a few sipes in the tread. … Spare tires are not meant for everyday use, no matter if they are a full-size spare or a compact space saver spare tire.

What size tire covers 255 70R18?

Expert Reply: The overall diameter of your 255/70R18 tire is 30.4 inches. Our most popular tire cover for tires this size is the Rampage # RA773201 which fits tires between 30 and 32 inches in diameter.

What size tire cover do I need for a 14 inch tire?

The 14 inch trailer tires usually have an overall diameter of 26 to 27 inches. You could use a cover such as # CE27430 for black or # 052963751307 for white.

What size are most camper tires?

Trailer tire sizes are broken into main groups 12 inch and smaller and 13 inch and larger. Sizes 12 inch and smaller are generally listed by a two number size, such as 4.80-8 or 5.70-12. 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.

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What size are Class A RV tires?

Tough All Position Tire



Available in 16″, 19.5″, 22.5″ and 24.5″ rim sizes. Intellimax rib technology helps provide a stiffer tread for high mileage and even wear.

What wheel trim size do I need?

Wheel trims are are usually measured in inches and refer to the diameter of your car’s wheels (13/14/15/16 and 17 inch). To find the size of the wheel trims you require, look on the sidewall of your tyre and you will see a series of numbers. The number following the letter R is your wheel size in inches.

How do you read rim sizes?

Locate the stamped size on the back of the hub on the rim. This is the assigned measured size of the rim, and it is broken into three sizes: diameter, width and bolt pattern. For example, a 14 by 6 by 4.5 reading on the rim indicates that the diameter of the rim is 14 inches, and it will accommodate most 14-inch tires.

Life on wheels