I always balance trailer tires. If you don't, they tend to bounce and cup. That produces a lot of heat which kills tires.
As far as running passenger tires, that is what is used in the low profile trailers, but XL tires are used which have a stiffer sidewall than a P-metric passenger tire. Sidewall flexing generates heat, which, as I have said, kills tires.
Running tires below their maximum tire pressure also allows more sidewall flexing, which....
Full Trailer LED Light Package Delivered for $70
2 6" Flush mount Stop/Turn/Tail Lights w/Grommets,
4 clearance lights, Stainless Over 80" Light bar and Free Shipping
ALUMINUM WHEEL AND TIRE PACKAGES
SINGLE AXLE 14" PACKAGE STARTING AT $369
SINGLE AXLE 15" PACKAGE STARTING AT $439
TANDEM AXLE 14" PACKAGE STARTING AT $649
GOLF CART TIRE & WHEEL PACKAGE STARTING AT $589
PM me or email email@example.com