I've never heard of Boto tires, but for sure their are a lot of products from overseas I've never heard of
I found some reviews on Amazon fo 'Boto' - not the same tire you have noted - and scanning down the reviews from people who have bought, they ranged from 2 -5 stars. (And of course, most people do a review on Amazon within a short time after purchase, very few come back two years later when they determine a different opinion. So I take Amazon reviews with a grain of salt, but, it is something
I found another thread fro Boto passenger tires, old as it was 2013, where the buyer regretted the purchase due to fast wear, and very poor grip on wet surfaces. (Totally different tire, so not apples to apples.)
Finally I found this link from a site where many items are taken about, and he had Boto as Number One tire for RV's. (Now I have no idea how a single individual can due hands on analysis of different RV tires(?). And I've noted on sites like this before, the majority of the time the items being talked about/reviewed, have a 'Click Thru' button to Amazon. So I take these with a grain of salt to, as it's a revenue producing type site. (All IMO.))
So what do I think? Well I think tires are one the top safety items on a car and or RV. The only thing that allows you to go forward, stop, or turn - are those little contact patches of material between the tire and the road. I go out of my way on safety items, to buy what I think (And that is subjective, and not always the most expensive item
!), is the safest item. I also don't care how many miles a tire is driven per year, as a blow can happen in 50 miles or 5000 miles. Or a need for a panic stop or maneuver can happen in 1/2 mile, or 10,000 miles... You jus never know...
So if looking for a reasonably price tire, I'd go with the ones that come up time and time again on threads about tires. Hankook, Toyo, BF Goodrich, Cooper, to name a few. I feel a reasonably priced tire, FMCA if you are a member, is the BG Goodrich ST230. They're a solid Tier 2 tire made by Michelin. Nope, not least expensive by a long shot. And, I'd also want to insist that they be Born On Dates of under 6 months of age.
The final general comment I toss into tire threads is not specific to a brand, and I repeat it for new RV'er's, as I feel they are important for safety.
-Get loaded for a trip, get full fuel an add full water tanks too, and get a 'Four Corner Weight'. Set your tire PSI to the Tire Manufactures recommendation for that weight. (I personally add 10% for contingency.)
-Exercise your tires. If not in regular usage, add a every 4-6 week reminder to get out and drive your coach. (If possible, understand some are in hibernation due to local winter conditions.) Get them up to highway speeds and temps for a good 45-60 minutes. (Exercise the other systems in our RV at the same time. (OTR AC, Hydro/AquaHot, Roof Air, Generator, etc.)
Sometimes getting a lower price item will work fine for an application. IMO, tires are not an item to go for the lowest price, go fo as much safety as you can afford.
And Boto's may indeed be a fine tire... Just not enough info in 10 minutes of looking, to give me a positive opinion to confirm this.
Best of luck to you, be safe, have fun,