Knowledge Center
Written by our wholesale team from real distribution data — no filler. Also try our tire size calculator.
Why Your TPMS Light Comes On the First Cold Morning
Air contracts when it cools: tire pressure drops roughly 2% for every 10°F fall — about 1 PSI on a passenger tire, but 1.3–1.5 PSI on a 65-psi trailer…
Updated 2026-07-14
ST Tire Selection Guide: Matching Trailer Tires to Trailer Type
Match the ST tire to the trailer's loaded weight and duty cycle: ST205/75R15 load range D–E covers most single-axle utility trailers, ST225/75R15 E fi…
Updated 2026-07-12
Load Range E vs G vs H for Trailer Tires: Which Do You Need?
Load range E trailer tires carry roughly 2,830–3,750 lbs per tire at 80 PSI and suit most utility and boat trailers. Load range G (14-ply, ~4,400 lbs …
Updated 2026-07-12