ST235/85R16 vs. 235/75R17.5 18-Ply Low Pro Tires: Which is Best for Your Trailer?
Posted by Kaleb Carter on Nov 7th 2025
When it comes to trailer tires, two of the most common heavy-duty options are the ST235/85R16 and the 235/75R17.5 low profile (18-ply) tire.