The best ST215/75D14 tire-and-rim assembly depends on your trailer’s load requirements, bolt pattern, and preferred wheel finish. The eCustomRim options match the ST215/75D14 size and specify a 5-on-4.5-inch bolt pattern, 1,870-pound maximum load, and Load Range C. The Free Country assemblies use ST215/75R14 tires instead: they share the 215/75R14 sizing format but have a different construction designation, so confirm your trailer’s requirements before choosing one.
| Assembly | Best For | Key Difference |
|---|---|---|
| eCustomRim White | Buyers wanting a single D14 assembly | White wheel; Load Range C |
| eCustomRim Silver | Buyers preferring a silver wheel | Silver wheel; Load Range C |
| eCustomRim 2-Pack | Buyers replacing two assemblies | Two D14 assemblies |
| Free Country Black | Buyers considering an R14 option | Black mod rim; 8-ply D tire |
| Free Country Silver | Buyers considering an R14 option | Silver mod rim; 8-ply D tire |
eCustomRim White Load Range C Assembly
This is a direct match for shoppers specifically looking for an ST215/75D14 tire-and-rim assembly. Its bias-ply tire has a stated maximum load of 1,870 pounds, a 50 PSI specification, a 26.9-inch overall diameter, and Load Range C. The included 14-by-5.5-inch rim has a 3.19-inch center bore and a 5-on-4.5-inch bolt pattern.
Best for: Trailer owners whose required size, load range, and wheel measurements match the listed specifications and who prefer a white rim. The listing describes the tire, wheel, and valve stem as a DOT-approved assembly and includes a two-year manufacturer’s warranty with roadside assistance. Check before buying: Confirm that the maximum load and bolt pattern meet your trailer’s requirements; this is a Load Range C bias-ply tire.
eCustomRim Silver Load Range C Assembly
This silver-wheel option has the same core tire and rim specifications as the white eCustomRim assembly: ST215/75D14 bias-ply construction, Load Range C, a 1,870-pound maximum load, and a 50 PSI specification. The rim measures 14 by 5.5 inches, with a 3.19-inch center bore and a 5-on-4.5-inch bolt pattern. The stated overall tire diameter is 26.9 inches.
Best for: Buyers seeking the listed D14 size and specifications with a silver finish rather than white. The product listing also identifies the tire, wheel, and valve stem as DOT-approved and states that a two-year manufacturer’s warranty with roadside assistance is included. Check before buying: Match the listed load and wheel dimensions to your trailer; a matching tire size alone does not confirm wheel fitment.
eCustomRim Two-Pack ST215/75D14 Assembly
This listing is a two-pack of ST215/75D14 trailer tire and rim assemblies. Each assembly is described as bias-ply, Load Range C, with a maximum load of 1,870 pounds and a 50 PSI specification. The rim is 14 by 5.5 inches, with a 3.19-inch center bore and a 5-on-4.5-inch bolt pattern; the tire’s stated overall diameter is 26.9 inches.
Best for: Owners who need two assemblies and whose trailer calls for these size and fitment specifications. The listing describes the assemblies as DOT-approved and includes a two-year manufacturer’s warranty with roadside assistance. Check before buying: Verify that the stated load capacity is appropriate for each wheel position and that the trailer’s bolt pattern matches.
Free Country Black Mod Rim Assembly
This assembly uses an ST215/75R14 tire, an 8-ply Load Range D specification, and a black mod rim with a listed 5-by-4.5-inch pattern. Its features include a full nylon cap-ply overlay across the tread, a scuff-guard ring on the tire sidewall, and a stated tread depth of 8 mm.
Best for: Buyers whose trailer permits the R14 tire designation and who want a black rim with the listed tread and sidewall features. The full tread-area overlay and scuff guard are specific features stated in the listing. Check before buying: This is ST215/75R14, not ST215/75D14. Confirm the required tire construction, load capacity, and rim measurements before selecting it.
Free Country Silver Mod Rim Assembly
This Free Country option pairs an ST215/75R14, 8-ply Load Range D tire with a silver mod rim. The listing calls out a full nylon cap-ply overlay across the tread, a scuff-guard ring for tire-side and rim protection, and 8 mm of tread depth. It also lists a 5-by-4.5-inch bolt pattern.
Best for: Trailer owners comparing R14 assemblies who prefer a silver rim and want the listed tread-area overlay and scuff guard. Check before buying: The R designation differs from the D designation in the requested size. Do not assume the assembly is suitable simply because both tire labels include 215/75 and 14; verify the trailer maker’s specifications and the complete wheel fitment.
Buying Guide: How To Choose A Trailer Tire And Rim
Does ST215/75D14 Have To Match Exactly?
Check the tire label or trailer documentation for the required size and construction designation. The eCustomRim choices are listed as ST215/75D14 bias-ply assemblies. The Free Country products are listed as ST215/75R14. Because the letter differs, verify with the trailer manufacturer or a qualified tire professional before substituting one for the other.
How Do You Check Rim Fitment?
Compare the bolt pattern, center bore, rim width, and wheel diameter with your trailer’s requirements. The eCustomRim listings specify a 14-by-5.5-inch rim, a 3.19-inch center bore, and a 5-on-4.5-inch pattern. The Free Country listings specify a 5-by-4.5-inch pattern, but the supplied details do not state their center bore or rim width. Confirm missing measurements before ordering.
What Load Rating Should You Choose?
Use the trailer’s required capacity and account for the load carried by each tire. The eCustomRim listings state a maximum load of 1,870 pounds per tire and Load Range C. The Free Country listings state 8-ply Load Range D but do not provide a maximum load in the supplied product details. Do not infer capacity from ply rating alone; check the tire’s full specifications.
Should You Buy One Assembly Or Two?
Choose a single assembly if you need one replacement and a two-pack if you need two matching assemblies. Before replacing only one tire, consider the remaining tire’s condition and follow the trailer manufacturer’s guidance. Compare the listed specifications and wheel finish as well as pack size.
Frequently Asked Questions
What Does ST Mean On A Trailer Tire?
ST identifies a special-trailer tire designation. Confirm the required tire type in your trailer documentation rather than assuming a passenger-car tire is an appropriate substitute.
Are ST215/75D14 And ST215/75R14 The Same?
No. The listings use different construction letters: D for the eCustomRim bias-ply assemblies and R for the Free Country options. Verify that the alternative designation is approved for your trailer.
What Bolt Pattern Do The eCustomRim Assemblies List?
The eCustomRim assemblies specify a 5-on-4.5-inch bolt pattern, a 3.19-inch center bore, and a 14-by-5.5-inch rim.
What Is The Listed Maximum Load For The eCustomRim Tire?
The eCustomRim product details state a maximum load of 1,870 pounds per tire. Confirm that this meets your trailer’s required capacity.
Do The Free Country Listings State A Maximum Load?
The supplied Free Country details list 8-ply Load Range D, but do not state a maximum load. Check the complete tire specification before purchase.