Tire stuff -Mixed Spare tire- will it work

[americanrascal]

Recently we bought a new Itasca MH on an F53 chassis with GY G670 RV tires. Itasca doesn't crank out rigs in this model line with spare tires.(245 70R19.5)

Having had a Class A a few years back that seemed to enjoy blowing tires or having tires that fail, I want to always have spare handy- especially since we are running up the Alaska Hiway this coming summer.I recently purchased a wheel to mount a spare on this new rig.

My mind is saying to me don't spend big on this spare- just get something to get you to the next spot where you can have your G670 repaired or replaced. So I have been eyeballing a Sailun S637 which is significantly lower cost than a GY.

I see a bunch out there on these Sailun G670 tires for 5vers (smaller diameters) but not much about them for MH's.

Is this a practical tire for a MH spare? Any big issues with running an odd tire for a while until I can replace something in kind if I lost a GY G670 assuming same load range?

Do these tires work well permanently mounted?

Would appreciate some outside thinking guidance here about this.

Thanks
Rascal

[Effy]

Since you plan on buying an exact replacement anyway, why would you buy a different tire, and then buy the replacement also. Why not just carry the replacement? You're not going to save any noticeable weight, time or effort in swapping them and you would certainly spend more money buying 2 tires instead of one. Am I missing something?

[Ductape]

Sure it will work. I went the other way and bought a Toyo spare because that is what I will replace any failing GY with.

[midnightsadie]

anything in a pinch. will work.