Thin, Light 37" Tire for Spare?

[dayusmc]

I did a search, but it doesn't seem to have been talked about...
I was wondering if anyone knows of a thin, light 37", basically a 37" donut, that could be used as a spare. I have a Clayton rear track bar, so a 37" with fit. But I do not rotate my spare tire into the trucks tire. I am looking for something light because on thr side of thr road I don't want to be messing with a heavy tire. I am just going to use it in an emergency.
I know I could just out the 33" tire on the front passenger side and use that tire for the flat tire, but on the side of the road I don't want to be messing around too much... We have crazy drivers here in NJ, I don't want to get run over

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[Kajo]

37X12.50X17 BFG KO2 load range C on a stock rim seems to be pretty light and not to wide for a 37" tire. Maybe a little short compared to other 37"s but it is just your spare and better than the stock 33..

 

[fourfa]

there are some 37x11.5-17 tires that won't hang down quite so low, which might matter in the rocks and on rocky shelf drops... but I'm guessing not much of that around NJ

If you don't want to spend the extra cash for a fifth wheel and tire so you can do a 5-tire rotation, you can consider just hunting around local tire shops for used take-offs from their piles of old tires. I've done this a few times when I tear a sidewall on a trail, and stop in some small town looking for a used tire so I at least have something to use as a spare. Cost is low, from free up to maybe $50 if there's some tread left. I've got a bald Cooper Discoverer AT on a stock wheel in my backyard right now, which I found in a pile in Escalante UT for $10.

Lack of tread also makes the tire lighter, incidentally.

 

[dayusmc]

It isn't the money I am concerned about. I actually already have a 5th matching rim. It is the weight of the spare that is a PIA. I have 35s on now with the matching rim and tire, but it is way to heavy to mess with on the side of the road, I am moving to 37s.... Just looking for the lightest 37 and I am going to put it on the stock spare tire rim. It is all about weight...

 

[fourfa]

then yeah, the C-range BFGs are probably the lightest

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