Check your trailer's (usually located on the frame) or the existing tire's sidewall for these critical markings:
Bias Tire vs Radial Tire Trailer A Complete Comparison Guide buy boat trailer tires
: Ensure the combined capacity of all tires exceeds the total weight of your boat, trailer, fuel, and gear. Experts recommend leaving a 10-12% safety margin rather than maxing out the load rating. 2. Choose the Right Construction: Radial vs. Bias-Ply The best choice depends on how you use your trailer: Check your trailer's (usually located on the frame)
Buying boat trailer tires is a critical safety decision because trailers face unique stresses like heavy static loads, high heat, and frequent submersion in water. Unlike standard car tires, trailer tires are specifically designed with stiffer sidewalls to handle these demands and prevent dangerous swaying. Choose the Right Construction: Radial vs
: This indicates the tire's carrying capacity, typically labeled as a letter (B, C, D, or E): Range C : Supports roughly 1,820 lbs per tire. Range D : Offers higher 8-ply strength for heavier boats.
: Always ensure the tire is marked ST (Special Trailer) . Never use passenger (P) or light truck (LT) tires unless specifically authorized by the manufacturer, as they lack the necessary load capacity and sidewall stiffness.
: Common boat trailer sizes look like ST175/80R13 . This denotes the width (175mm), aspect ratio (80%), construction type (R for radial), and rim diameter (13 inches).