The best 6×5.5 wheels and tires depend on your trailer’s required tire size, load rating, and wheel specifications. These five ST225/75R15 assemblies all list a six-lug, 5.5-inch bolt pattern. The eCustomRim set is a clear option when you need a two-pack and specified rim dimensions; Free Country offers a two-pack with a tread-protection feature, while ROCKMAN options highlight deeper tread and silver modular rims. Confirm fitment and load requirements before ordering.
| Product | Standout detail | Best suited for |
|---|---|---|
| eCustomRim 2-Pack | Specified 15×6 rim and 4.25-inch center bore | Buyers checking detailed fitment |
| Free Country Black Mod, 2-Pack | Full-width nylon cap ply overlay | Buyers wanting a black modular style |
| Free Country Black Mod Rim | Scuff Guard ring and 7 mm tread | Buyers comparing listed protection features |
| ROCKMAN Silver Mod, 2-Pack | 8 mm tread depth | Buyers needing a two-pack with silver rims |
| ROCKMAN Silver Mod | Load Range E, 117 load index | Buyers seeking a single listed assembly |
eCustomRim 2-Pack Radial Trailer Assembly
This eCustomRim assembly is best for buyers who want two complete radial trailer tire and wheel assemblies and need published rim dimensions. The tire size is ST225/75R15, and the listed Load Range E tire has a maximum load rating of 2,860 pounds and a maximum pressure of 80 PSI.
The rim is listed as 15×6 inches, with a 4.25-inch center bore and a six-lug, 5.5-inch bolt pattern. The product information also specifies a 28.1-inch overall tire diameter and a DOT-approved tire, wheel, and valve stem assembly. These details make it easier to compare the listing with a trailer’s required specifications.
Choose this if you need a two-pack and want the rim width and center bore stated. Limitation: the listed maximum load and pressure are specifications, not a substitute for checking the trailer’s axle and tire requirements.
Free Country Black Mod Trailer Tire Pair
This Free Country two-pack is best for buyers looking for ST225/75R15 tires on black modular rims with a six-lug, 5.5-inch pattern. The product name specifies 10-ply, Load Range E tires and a 117N rating. The listing emphasizes a full nylon cap ply overlay across the tread area, distinguishing its stated construction from products described as having nylon strips only at the shoulders.
The tire also has a “Scuff Guard” ring on the sidewall, which the manufacturer describes as providing added tire-side and rim protection. Its listed tread depth is 7 mm.
Choose this if the black modular appearance and the listed overlay and scuff-guard features match your priorities. Limitation: the supplied feature details do not state rim width or center bore, so verify those measurements before purchase.
Free Country Black Mod Trailer Assembly
This Free Country listing is best for shoppers comparing a black modular assembly with the brand’s specified tire protection features. It shares the ST225/75R15 size and 10-ply Load Range E description in its product name, and the features list a full nylon cap ply overlay across the tread area.
The listing also describes a Scuff Guard ring intended to protect the tire side and rim, plus a 7 mm tread depth. Those details give buyers concrete points to compare with other options in this selection.
Better for buyers who want the listed black modular style and tread-side protection details. Limitation: the product information provided does not specify the package quantity, rim width, or center bore; check the listing and trailer specifications to confirm them.
ROCKMAN Silver Mod Trailer Tire Pair
This ROCKMAN product is best for buyers who want a two-pack with silver modular rims and an 8 mm listed tread depth. The tire is described as 10-ply, Load Range E, with load index 117 and speed rating M, stated as up to 75 mph. Its wheel has a six-lug, 5.5-inch bolt pattern and zero offset.
The 8 mm tread figure is the listing’s stated comparison point for buyers evaluating tread depth. It does not establish how long a tire will last, since service life depends on use and maintenance.
Choose this if you need a pair and the silver rim style, zero offset, and listed rating suit your requirements. Limitation: rim width and center bore are not included in the supplied features, so verify both if they are required for fitment.
ROCKMAN Silver Mod Trailer Tire Wheel
This ROCKMAN assembly is best for buyers seeking the same stated tire and wheel specifications as the ROCKMAN pair, but who are comparing a listing whose name does not specify a two-pack. It lists an ST225/75R15 tire, 10-ply construction, Load Range E, load index 117, and M speed rating up to 75 mph.
The silver modular wheel has six lugs on a 5.5-inch bolt pattern, zero offset, and a listed tread depth of 8 mm. These published details help distinguish it from the black Free Country options and the eCustomRim assembly with stated rim dimensions.
Choose this if its stated ratings and silver modular style match your needs. Limitation: package quantity, rim width, and center bore are not stated in the supplied product features; confirm them before ordering.
Buying Guide: How To Choose 6×5.5 Wheels And Tires
Does the bolt pattern match your trailer?
A 6×5.5 pattern means six lug positions on a 5.5-inch bolt circle. Match that measurement to your trailer’s wheel requirements. Also check center bore, rim width, offset, and clearance where those details are available. A matching bolt pattern alone does not confirm complete fitment.
What tire size and load rating do you need?
All five products list ST225/75R15 tires. Check your trailer documentation and current equipment for the correct size and required capacity. Load Range E, ply rating, and load index are not interchangeable descriptions; compare the exact specifications and never exceed the applicable tire, wheel, or axle limits.
Should you buy a pair or a single assembly?
Compare package quantity before placing an order. The eCustomRim and two ROCKMAN product names identify a pair, while the final ROCKMAN name does not state a quantity. The supplied features for the Free Country listings do not confirm package quantity, so verify the product listing.
Which tread and wheel details matter?
The Free Country products list 7 mm tread and a Scuff Guard ring. The ROCKMAN options list 8 mm tread, silver modular styling, and zero offset. The eCustomRim listing provides a 15×6 rim and 4.25-inch center bore. Use these details to compare products, but confirm all measurements against your trailer.
Frequently Asked Questions
What does 6×5.5 mean?
It describes a wheel with six lug positions arranged on a 5.5-inch bolt circle. Confirm the measurement against your trailer’s specifications.
Are these products trailer tires?
Yes. The listed products are trailer tire and wheel assemblies, and each product name or feature set identifies an ST225/75R15 tire.
Do all five listings provide the same fitment details?
No. The eCustomRim listing specifies rim width and center bore. The supplied features for the other products give the bolt pattern but do not include those measurements.
Is Load Range E enough to confirm a tire is suitable?
No. Check the tire’s specific load rating and compare it with your trailer’s requirements, axle capacity, and operating conditions.
How do I confirm whether a listing includes one assembly or two?
Check the package quantity in the product listing. Some product names state “2-Pack” or “Pk2,” while others do not specify quantity in the supplied information.