Transeagle tires

How to Choose Transeagle Tires

Choose Transeagle tires through trailer-service logic, not through passenger, SUV, or light-truck logic. Transeagle's lineup - including the ST Radial, ST Radial II, and Transhauler HD - is engineered for heavy hauling, available in sizes from 12 inches to 22.5 inches. However, those three model lines serve two distinct use cases that must not be confused: the ST Radial and ST Radial II are ST-rated trailer tires only, while the Transhauler HD is a commercial truck tire for all axle positions on motorized vehicles - a separate application entirely.

For trailer use, the primary internal choice is between the ST Radial and the ST Radial II. The ST Radial features all-steel construction in both the sidewall and tread for maximum casing durability and damage resistance, with popularity concentrated in sizes ST205/75R15 and ST235/85R16 as the most sought-after fitments.

The ST Radial II uses a polyester casing with steel belts and a full nylon overlay, offering a wider size range than the ST Radial but with load ranges topping out at F rather than the higher load ranges the all-steel ST Radial can reach. The practical rule: buyers needing maximum load range and casing strength start with the ST Radial; buyers prioritizing size availability and value at moderate load ranges start with the ST Radial II. Both models carry the Special Trailer Use Only designation and must not be mounted on light trucks.

For commercial truck applications - drive, steer, or trailer positions on Class 6–8 vehicles - the Transhauler HD is the correct branch. It is an all-season highway tire designed for commercial vehicles and is suited to all axle positions, with sizes in 17.5-inch and 19.5-inch rim diameters. This is a fundamentally different product class from the ST trailer lines and should not be cross-referenced when shopping for conventional trailer tires.

Popular Transeagle Tire Sizes for Trailers & Commercial Hauling

The most common Transeagle tire sizes include:

• ST205/75R14 - utility and cargo trailer fitment; available in ST Radial II in Load Range D (8-ply); one of the smallest ST sizes in the Transeagle lineup, suited to lighter single-axle trailers.
• ST205/75R15 - the most widely stocked Transeagle ST size; available in both ST Radial and ST Radial II in Load Range D and E; common on boat trailers, utility trailers, and smaller tandem-axle setups.
• ST225/75R15 - travel trailer and RV fitment; available in ST Radial II in Load Range E (10-ply); a step up in load capacity from the 205-width for heavier single and tandem configurations.
• ST235/80R16 - equipment trailer and fifth-wheel fitment; available in ST Radial (all-steel) in Load Range H (16-ply) and ST Radial II in Load Range F (12-ply); the load range difference between models is material here.
• ST235/85R16 - the heaviest common Transeagle ST fitment; available in the all-steel ST Radial at Load Range G (14-ply); used on heavier RV, gooseneck, and equipment trailers requiring maximum load capacity.
• 225/70R19.5 & 235/75R17.5 - Transhauler HD commercial truck sizes; Load Range G-J depending on ply rating; these are motorized vehicle fitments, not trailer tires.

Transeagle is a dedicated trailer and commercial tire brand. For ST trailer applications, the operative selection factors are load range, ply rating, inflation pressure, and axle load rating - not passenger ride comfort or tread performance language. The ST designation itself carries a mandatory inflation and load capacity structure that differs from P-metric and LT-metric tires of comparable size. Buyers should confirm axle load requirements and match load range before comparing models or prices.