How to Determine the Right Size Spare Tire Cover
Question:
how do you measure the inches for the spare tire cover? Cannot find anything specific to tire size. Also, do you have any camo tire covers?
asked by: Dave B
Expert Reply:
The inch measurements on spare tire covers such as # RA773215 indicate the overall tire diameter or height. This particular cover fits a tire that is 30 to 32 inches tall. If you can tell me your tire size I can determine the proper size cover.
Or you can do the math. Let's say you have a 225/75-15 tire size. Take the first number and multiply by 0.0394 (225 x 0.0394 = 8.865). Then multiply the result by 0.75 (8.865 x 0.75 = 6.648).
Next, multiply by 2 (6,648 x 2 = 13.29). And last, add the wheel diameter, in this case 15 (13.29 + 15 = 28.29). That 28.29 is the tire diameter/height, give or take a fraction of an inch.
We have a lot of spare tire covers, see link to the right, but none in camo at this time.




James S.
6/9/2020
I just bought a 2017 jeep wrangler unlimited . It has P265 R70 17 size tires. What size of spare tire cover should I order. I don't have a back up camera.





Product Page this Question was Asked From
Rampage Spare Tire Cover for Jeep - 30" to 32" - Black Denim
- Spare Tire Covers
- 30 Inch
- 31 Inch
- 32 Inch
- Vinyl
- Black Denim
- Rampage
more information >
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Kelli B.
6/3/2020
If my tire is an 18, what size spare tire cover do I order? I keep seeing 33 everywhere. Thanks!