Can I use a 255x80 22.5 as a spare?
I just purchased a new coach and I believe that the tires on the new coach are 275x80 22.5. I bought a 255x80 22.5 to have as a spare on my current coach (tire has never been mounted or used). Can I...
Forum Discussion
Ivylog wrote:michelb wrote:
Personally, I really wouldn't worry about it as you are probably only planning on using the smaller spare for emergency anyway and would eventually replace it with the proper size. Driving a few hundred miles with mismatched tires is not really going to have any effect.
X2 if you put it on the front at max pressure.
Good point about the pressure; the smaller tires are likely to have a lower carrying capacity so you'll need to have them more inflated to get the right capacity. Also running at max will mean you get the least amount of tire 'compression' under the load as possible which will help compensate for the fact that they are a bit smaller.
