Hub adapter to use truck spare on trailer

Not new to towing, but new to towing A LOT. Just bought a Hiker teardrop trailer that so far does not have a spare and was wondering if it would be smart to buy a hub adapter so that I could use the truck spare if I got a flat on the trailer. Trailer is 5x4.5 and I see other have used this

$124 EZAccessory 2 Wheel Adapter 5x4.5 to 6x5.5 (5x114.3 to 6x139.7) Thickness 2"

adapter from Amazon.

The Hiker comes with off road tires and I would think the odds of getting a flat are pretty low so I could save a bit of weight and expense by rolling the dice and having just the one spare.

So kind of a two part question. One would this adapter be ok to just get me to a tire shop, and two is it a dumb idea to not have two spares?

 

It would be much better to get a dedicated spare with a trailer tire. Especially for the price of those adapters, I'm not even sure who this is for.

 

You could also keep an eye on marketplace for a used rim matching your trailer. Then toss some cheap rubber on it

 

Look at the load ratings of both tires. That may answer the question.

 

Trailer tires are Westlake Mud Legend 235/75R15
Truck tires are Wildpeaks 265/70/R16

So yeah the diameter difference would not be ideal, load rating would be fine. Trailer will be around 2000 pounds loaded.

Just thinking there's a pretty low chance I'd ever NEED the trailer spare and trying to save a few bucks and a few pounds of towed weight.

 

I run similar adapters to go from 5x4.5 on the trailer hub to 5x5.5 on a set of Jeep Wrangler wheels that i picked up on Craigslist. Never had any trouble, and have put a few thousand of miles on them. I recently bough adapters to go 5x4.5 to 6x5.5 to share a spare with the truck. I can post back when I get some miles on them.

Some notes and photos here:
https://www.tacomaworld.com/threads/camping-trailer-project-advice-before-cutting-metal.845204/

 

I've used my spare tire exactly twice over 185,000 miles between my Tacoma and 4Runner (and a tire plug kit twice, while at home). Odds sound good, but would you actually leave the truck spare at home?

I'm missing the budget argument completely: how is a $120 piece of off-brand Amazon crap better value than a wheel and tire? How much more do you think a dedicated spare will cost?

If you can't afford parts for your camper, you can't afford to go camping.

 

Yeah I get that and the spare is easily affordable. Hiker wants $300 for a matching wheel/tire and I'm sure I could find something cheaper. The $120 adapters would sit in the trailer storage box unused. And I'll see your 185,000 miles and raise you close to a million miles and 30 years since I last needed a spare on any vehicle. Punctures and slow leaks, yeah, but not a total failure.

But it does make sense and I'll probably just go with a spare. I just overthink everything. Always have, always will.