Trailer Tires Wholesale: ST Tire Sizes, Load Ranges & Bulk Pricing
May 15, 2026
Buyer's guide to ST trailer tires for boat, utility, camper and cargo trailers — sizes and load ranges explained.
Why ST tires
ST tires have stiffer sidewalls that handle trailer sway and heavy loads better than passenger tires.
Popular sizes
ST205/75R15, ST225/75R15 and ST235/80R16 are the best sellers for utility and camper trailers.
Load range
Match the load range to the trailer's weight. Load range E is common on heavier campers and equipment trailers.
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