1958 Edsel Roundup Tires

The 1958 Edsel Roundup uses two primary tire sizes: 800-14 and 850-14. Both are bias-ply sizes designed for 14-inch rims, so the wagon does not have a single universal fitment across every example you may encounter today.

The practical next step is to confirm which size is actually on the vehicle, along with the wheel width and overall setup. Since both sizes share the same rim diameter, it is easy to assume they are interchangeable, but the correct choice still depends on the wagon’s present configuration and the fitment you want to preserve.

The primary tire sizes for the 1958 Edsel Roundup both use a 14-inch rim diameter. That applies whether the wagon is fitted with 800-14 or 850-14 tires, so rim diameter remains consistent across the covered fitments.

Rim diameter is only one part of the picture, so it is still worth confirming the wheel width before selecting a replacement tire. A 14-inch wheel can exist in more than one width, and that matters even more if the wagon has replacement wheels or if a radial equivalent is being considered instead of staying with bias-ply construction.

The 1958 Edsel Roundup is associated with both 800-14 and 850-14 bias-ply tire sizes. That means buyers need to think in terms of verifying the actual vehicle setup rather than assuming every Roundup wagon takes one exact size.

Because both sizes mount on 14-inch rims, the difference is not obvious from wheel diameter alone. Checking the tires already on the wagon, measuring the wheel width, and looking for any changes made over the years will help narrow the choice before selecting between available bias-ply products or moving into radial-equivalent options.

On a 1958 Edsel Roundup, 800-14 is a primary bias-ply tire size. It uses the traditional numeric sizing format common to many American vehicles of the period, and the available primary products in this size are bias-ply tires rather than modern radials.

That matters because staying with a bias-ply tire preserves the original-style sizing format and a more traditional visual presentation. Buyers looking for a different construction can compare radial equivalents, but the wheel width, overall dimensions, and clearance around the wagon still need to be checked before changing from the primary bias-ply fitment.

For 800-14, radial equivalents include 205R14, P215/75R14, P225/70R14, and 800R14 as a bias-look radial. For 850-14, the available radial equivalents are 215R14, P225/75R14, and P235/70R14. Both primary sizes share a stated recommended rim-width range of 5 to 7 inches for these equivalent comparisons.

Those alternatives differ by sizing system and profile family, so they should be treated as comparison points rather than automatic replacements. Checking the wagon’s wheel width, tire-to-fender space, and front steering clearance is especially important before moving from a numeric bias-ply size into a metric or P-metric radial format.

A conversion starts with confirming the wagon’s primary size, actual wheel width, and the radial equivalent being considered. The 1958 Edsel Roundup has equivalents for both 800-14 and 850-14, but each option uses a different sizing convention, and 800-14 also has an 800R14 bias-look radial alternative.

Beyond the size itself, look at wheel condition, rim compatibility, and clearance through the full steering range. A Roundup with replacement wheels, suspension changes, or aged steering components deserves even closer inspection, since a radial-equivalent tire should match the vehicle’s real-world setup rather than just the nominal 14-inch rim diameter.

Start with the correct primary size, because the 1958 Edsel Roundup uses either 800-14 or 850-14, both in bias-ply construction on 14-inch rims. Once size is confirmed, the next decisions are sidewall appearance, brand, tire series, and whether the wagon will remain on a traditional bias-ply setup or move to a radial equivalent.

A restoration-oriented owner may focus on whitewall width and period-style presentation, while a driver may look more closely at construction choice and wheel compatibility. It also helps to compare rim-width specifications and load figures where shown, especially if the wagon has not been on its original wheels for many years.

Sidewall choices for the 1958 Edsel Roundup include blackwall, narrow whitewall, and wide whitewall, depending on the tire size and product selected. The broadest appearance range is in 800-14, while 850-14 centers on narrow whitewall and wide whitewall offerings.

That gives the Roundup owner room to tailor the wagon’s look without changing the underlying primary fitment. A blackwall can create a plainer, more understated presentation, while narrow and wide whitewalls push the visual character more firmly into the late-1950s style, so appearance goals should be weighed alongside size and wheel compatibility.

Available brands for 1958 Edsel Roundup tires include BFGoodrich, Goodyear, and Universal Vintage Tire. Brand choice depends partly on tire size, with 800-14 offering the widest brand spread and 850-14 focusing on BFGoodrich bias-ply options.

Brand alone should not make the decision. It is smarter to compare the correct size first, then look at tire series, sidewall styling, rim-width suitability, and whether the tire supports the kind of appearance and road use the wagon is expected to see. That approach keeps selection grounded in fitment instead of name recognition alone.

A period-style 1958 Edsel Roundup usually starts with one of its primary bias-ply sizes, 800-14 or 850-14, because those preserve the original-size format and traditional construction associated with the wagon’s late-1950s character. The right size must be confirmed first, since the Roundup is associated with both.

After size is settled, the visual decision often comes down to blackwall, narrow whitewall, or wide whitewall presentation. Owners pursuing exact historical accuracy should compare that choice against marque references or vehicle-specific documentation, while buyers seeking a restoration-oriented look can focus on the sidewall treatment that best matches the wagon’s overall style.

Tire construction changes more than driving feel on a restored 1958 Edsel Roundup; it also affects how the wagon sits and presents visually. A bias-ply tire keeps the Roundup in its original-era sizing language, while a radial equivalent shifts the presentation into a more modern construction format even when the rim diameter remains 14 inches.

That difference is why some owners stay with bias-ply tires for a more traditional look, while others consider a radial for road use and still want an appearance that feels appropriate to the period. The 800-14 fitment also has an 800R14 bias-look radial option, which can be useful when visual character remains part of the decision.

Yes, modifications can affect tire fitment on a 1958 Edsel Roundup even when the tire still carries a familiar 14-inch designation. Changes such as aftermarket wheels, altered wheel width, suspension work, ride-height changes, or body repairs can all influence how an 800-14, 850-14, or radial equivalent actually sits on the wagon.

A modified Roundup should be checked at the front and rear for fender clearance, steering travel, and any signs of rubbing under load or at full lock. That is especially important when moving away from the original bias-ply construction, because a different sizing format may interact with the wagon’s wheel and suspension setup differently.

Before putting a 1958 Edsel Roundup back on the road, inspect wheel condition, verify the wheel diameter and width, and confirm that the new tires match the wagon’s intended size. It also makes sense to look over valve stems, lug hardware, and the surrounding suspension and steering components before regular use.

Once the tires are mounted, check inflation pressure, full-lock clearance, and any signs of contact at the fenders or inner wheelhouse. A short road test should be followed by another visual inspection for rub marks, air loss, or unusual behavior, especially on a wagon that has spent long periods stored or lightly used.

Collector-car tires on a 1958 Edsel Roundup should be maintained with regular pressure checks, visual inspections, and attention to age-related condition even if tread wear is minimal. Whether the wagon runs 800-14 or 850-14 tires, sidewall cracking, bulges, cuts, and slow air loss deserve prompt attention before any meaningful road use.

Storage conditions matter as much as mileage on a low-use wagon. Keeping the Roundup away from prolonged sun, excess heat, moisture, and ozone sources helps preserve the tires, and periodic inspection remains important because collector vehicles often age their tires out long before they wear them out.