Choose an ST205/75R15 trailer tire by the trailer placard, load requirements and wheel fit. The eCustomRim example is a mounted Load Range C assembly. The Freestar M-108+ example is a tire-only Load Range D replacement for a compatible wheel.
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ST205/75R15 Trailer Tire Specifications
| Check | eCustomRim mounted assembly | Freestar M-108+ tire |
|---|---|---|
| Product reference | TDT-Y136455-ECSR-AZ | Tireco 29865013 |
| Size and load range | ST205/75R15 radial, Load Range C | ST205/75R15 radial, Load Range D, 8-ply rating |
| Published tire load | Up to 1,820 lb at 50 psi | 2,150 lb at 65 psi in single-tire service. Tireco also lists 1,870 lb at 65 psi in dual-tire service. |
| Wheel details | 15 × 5 in steel rim, 5-on-4.5 in bolt circle, 3.19 in center bore, zero offset | Tire only. Tireco lists a 5.0–6.5 in approved rim-width range. Confirm the wheel’s contour, load and pressure ratings. |
| Listing | Check eCustomRim on Amazon | Check Freestar on Amazon |
These are tire ratings for the specified products, not the trailer’s payload limit or a universal inflation setting. Two axles with one tire at each end still use the single-tire figures. The dual rating refers to two tires mounted side by side at a wheel position.
eCustomRim Mounted Wheel and Tire
The documented assembly suits a trailer that needs the same tire and wheel configuration. A five-lug count alone cannot confirm the bolt circle. Match the hub, offset, center clearance and lug hardware to your manual. The maker page covers one assembly. Check the current seller listing for the actual pack count, delivered model and warranty terms.
Freestar M-108+ Load Range D Tire
Tireco lists a 107/102M service description and 10/32 in tread depth for part 29865013. Confirm the part number and service description with the seller, since the marketplace URL shows only part of the service description. Have a qualified installer check the rim and valve before mounting.
Fitment and Safety Checks Before Towing
- Start with the trailer certification label and manual. Confirm tire size, axle limits and the recommended cold pressure.
- Check the load at each wheel position when the trailer is packed. Uneven loading can overload one tire even if the combined tire ratings appear adequate.
- Match the tire to the wheel and valve. Do not exceed the lowest applicable wheel, tire or valve pressure limit. Confirm the pressure for a non-original replacement with the manufacturer or installer.
- Have the installer verify clearance, lug hardware and the trailer maker’s torque procedure. Before departure, check cold pressure and inspect the tires, including the spare, for cuts, bulges, cracks and unusual wear.
See the trailer wheel and tire service guidance filed with NHTSA and NHTSA’s tire maintenance guidance. If you carry a compressor, check that it supports your trailer’s required pressure and duty cycle using the portable tire inflator comparison.
Frequently Asked Questions
What should I check before buying an ST205/75R15 trailer tire?
Check the trailer placard and manual for tire size, minimum load rating and cold pressure. Verify wheel width, pressure rating and clearance. For a mounted assembly, also confirm the bolt circle, center bore, offset and lug seat.
How much load can these ST205/75R15 examples carry?
eCustomRim lists up to 1,820 lb at 50 psi for the tire in its Load Range C assembly. Tireco lists up to 2,150 lb at 65 psi in single-tire service for Freestar part 29865013. The wheel, valve and trailer also have limits.
Does a Load Range D tire increase my trailer’s weight rating?
No. The trailer and axle ratings still apply. Confirm the required tire load and pressure with the trailer manufacturer or a qualified installer, especially if changing from the original specification.
Does the Freestar come with a wheel?
Tireco catalogs Freestar part 29865013 as a tire. Confirm the seller’s package and use an approved rim with the required load and pressure rating.
Where do I find the correct cold pressure?
Start with the trailer’s tire placard and manual. For an approved replacement with different load or pressure requirements, confirm the cold pressure with the trailer or tire manufacturer or a qualified installer.
Photos and Listing References
