I have a 2021 33ik and I would assume there is not much difference between the 2020 and 2021 model. The axle's are 6,000 LB axles. The tires on mine are Ridgeway's Sport. I have had two of the tires treads seperate but I have not had any blowouts. I found the first one doing my normal walk-a-round inspection before moving the trailer and the second I discovered when I picked up a screw and had a flat tire. In both cases, I submitted a claim to Lionshead and they replaced both tires, no cost to me. Even send me $30 each to have them mounted and balanced. I do wish that the trailer had at least 7,000 LB axles but it seems to be doing alright with nearly 15,000 miles. When it is time to replace the tires, I think that I will go with Hercules H-901-ST tires. They are getting really high reviews and appear to be a much better tire than what the factory puts on. Good Luck!
2021 Ford F-350 Lariat
2021 Cedar Creek 33ik