Community Forums

Eight_Bit · 06-14-2020, 08:40 AM

Looking for an inexpensive UV protection for our tires, I'm finding conflicting info on the various tire cover manufacturers ordering pages.

We have 275 70 22.5 tires on our coach, the diameter according to tire to mfg. spec. page is "Inflated Diameter= 37.9".

The covers we are interested in seem to run 36.0 to 39" diameter. Does this seem to be a very generic fit ? or am I overthinking this ?

Thanks..

MSHappyCampers · 06-14-2020, 08:57 AM

I would go with the 39" covers.

bobmar · 06-14-2020, 08:59 AM

We just received our tire covers for ours new tires. They were advertised to fit 32”-34.5” tires. Ours measured 33” per specs and via tape measure. They fit perfectly, very snug. Lucky for us but I doubt they’d fit on a 34.5” tire without struggle. I’m sure each manufacturer is different.

GuyG · 06-14-2020, 11:02 AM

Not to hijack the OP's thread, but are tire covers worth the cost and the effort? I don't have an opinion but I am seriously curious.

Stay safe and healthy.

Eight_Bit · 06-14-2020, 12:49 PM

Quote:

Originally Posted by GuyG

Not to hijack the OP's thread, but are tire covers worth the cost and the effort? I don't have an opinion but I am seriously curious.

Stay safe and healthy.

Good question...I’m a retired 35 year truck driver, over 2 million miles with WMT. I never covered tractor or trailer tires in my life, however they never sat motionless for extended periods.

There is an argument that sitting motionless for extended periods, with exposure to UV rays dries out the compounds used in the tires.
This in turn causes sidewall deficiency and cracks.

That said I think all of the covers look goofy and out of place on a class A.
I’m entering a situation where my rig will be camped in the same spot for next 8-12 months. Aside for a few 1-2 week excursions, it will be motionless. Having just replaced 6 tires, I’ll try the inexpensive cover option. I’m no chemist but I watch a hella bunch of YouTube videos

Tha_Rooster · 06-14-2020, 12:51 PM

Bus size

GuyG · 06-14-2020, 01:58 PM

Quote:

Originally Posted by Eight_Bit

Good question...I’m a retired 35 year truck driver, over 2 million miles with WMT. I never covered tractor or trailer tires in my life, however they never sat motionless for extended periods.

There is an argument that sitting motionless for extended periods, with exposure to UV rays dries out the compounds used in the tires.
This in turn causes sidewall deficiency and cracks.

That said I think all of the covers look goofy and out of place on a class A.
I’m entering a situation where my rig will be camped in the same spot for next 8-12 months. Aside for a few 1-2 week excursions, it will be motionless. Having just replaced 6 tires, I’ll try the inexpensive cover option. I’m no chemist but I watch a hella bunch of YouTube videos

Eight_Bit, we have a lot in common: 2 mil miles OTR and tour motorcoach (bus). But you're right about sitting for extended periods. On the other hand, five to seven years in age is max for my tires (not there yet), so I guess I'll--like you--google some YouTubes.

AE Wanderer · 06-14-2020, 06:05 PM

If I stay in one spot for more than a week, I wash the tires and rims with warm water, dry the rims, spray the tires with 303, wipe the tires, and put the covers on. Do not see any value in covering dirty tires.

When I bought my tire covers, I measured for what size I need and bought the next size cover up. They have worked perfectly for me.

JFXG · 06-14-2020, 11:29 PM

X2 on AE, above. ⬆️⬆️⬆️⬆️

Buy one size bigger cover for the rear, and “bus” style covers (or 2 sizes up) for the front. To have room for the lugs and center section that protrude on the front wheel.
That’s about how I do my tires: clean, 303, covered.
And it works. Now, you know you could swing a rock on a rope in this forum and hit 15-20 people who will tell you horror stories about Michelin tires. My Michelins have a date code of 1612, and I’ve been taking care of them as above. Two of them are starting to show fine hairlines, and I’m planning to replace them this summer based solely on age, primarily to calm the DW. By Michelin guidelines I could likely get another year or two.
Keep ‘em treated and covered; it works. Unless you think covers look goofy, then it’s all up to you! [emoji6]

Gary RVRoamer · 06-15-2020, 06:53 PM

I would assume the cover manufacturer is a bit optimistic in his size range. If he says it fits up to 38", I would not buy it for a tire known to be 37.9" cause it's almost surely going to be too tight for convenience. In other words, err on the too large side.