1958 Arnolt-Bristol Tire Fitment Guide

1958 Arnolt-Bristol vehicles use one tire size: 550-16. That size applies to the 1958 Arnolt-Bristol MKII, and the available products are all bias-ply tires built for 16-inch rims. Where rim-width guidance is listed, 550-16 fits rims from 3.25 to 4.00 inches wide.

That simplicity is helpful because once you confirm you have a 1958 Arnolt-Bristol MKII on 16-inch wheels, the remaining choice is mostly about brand and sidewall appearance rather than switching between different fitment families. It is still wise to verify the wheel on the car before ordering, especially on a specialty vehicle that may have seen wheel changes during restoration or long-term ownership.

On a 1958 Arnolt-Bristol, 550-16 is a traditional numeric bias-ply tire size. The 5.50 designation refers to the tire's nominal section width in inches, while the 16 identifies the rim diameter in inches. Unlike a modern metric radial size, it does not use a millimeter width, aspect ratio, and radial construction code.

That matters because a numeric bias-ply size should be matched with the correct era-appropriate wheel diameter and product type, not cross-read as if it were a modern radial size. For an Arnolt-Bristol owner, understanding that code helps avoid confusion when comparing blackwall and wide whitewall options that share the same fitment but present a different finished look on the car.

Yes. The 1958 Arnolt-Bristol model range covered here uses a single tire size, 550-16, on the MKII. There is no split by model at this year-and-make level, and all listed products for that fitment are bias-ply tires for 16-inch rims.

That means you do not need to sort between multiple factory sizes before narrowing your options. Instead, identify the sidewall style and overall presentation you want for the car, then confirm the wheel itself is still the correct 16-inch fitment, since specialty sports cars are often restored, modified, or fitted with non-original wheels over time.

1958 Arnolt-Bristol tires in 550-16 are available in both blackwall and wide whitewall styles. Blackwall options are offered by Excelsior and Avon, while BFGoodrich and Firestone offer wide whitewall versions in the same size. All of them remain bias-ply constructions suited to the original sizing format.

Blackwalls usually deliver the more restrained sports-car appearance many buyers associate with European-influenced specialty cars, while wide whitewalls create a more overt period-custom or Americanized visual statement. Because the Arnolt-Bristol sits at an unusual intersection of British engineering and Italian coachwork, appearance matters almost as much as fitment, so choose the sidewall style that matches how your particular car is being restored or presented.

Four brands offer 550-16 tires for 1958 Arnolt-Bristol vehicles: Excelsior, Avon, BFGoodrich, and Firestone. Each of those options stays within the correct numeric bias-ply format and 16-inch rim diameter used by the MKII. The available lineup includes both blackwall and wide whitewall presentations depending on brand and series.

That gives Arnolt-Bristol owners room to choose a tire that suits the personality of the car without leaving the proper size. A buyer who wants a subtler sports-car look may focus on the blackwall choices, while someone aiming for a stronger period visual statement may prefer the whitewall offerings, all while staying with the same fundamental 550-16 fitment.

For a 1958 Arnolt-Bristol, the Firestone 550-16 is a wide whitewall bias-ply tire with a listed maximum load of 840 pounds at 32 psi, while the Avon Tourist 550-16 80L is a blackwall bias-ply tire with a listed maximum load of 992 pounds. Both are built for the same 16-inch fitment family, but they differ visibly in sidewall treatment and also differ in the load figure presented with the product.

That comparison is useful when you already know you need 550-16 and are deciding between appearance and product details rather than size. The Firestone leans toward a classic whitewall presentation, while the Avon keeps the look simpler and more understated, so the right choice depends on how you want the car to look and which listed specifications matter most to your intended use.

For 1958 Arnolt-Bristol vehicles using 550-16 tires, listed rim-width guidance runs from 3.25 to 4.00 inches on products where that specification appears. The tire size itself mounts on a 16-inch rim, and that width range is the key dimensional checkpoint beyond diameter when evaluating wheel compatibility.

Because Arnolt-Bristol cars are rare and often restored individually, wheel details deserve a close look before any tire is chosen. Measure the actual rim and confirm it falls within the listed range for the specific product you are considering, especially if the wheels have been replaced, widened, or sourced from another period British sports car during earlier work on the car.

The available 550-16 tires for 1958 Arnolt-Bristol vehicles are presented as bias-ply products, but the individual listings here do not all carry the same explicit tube marking in the size line. That means the safest approach is to confirm the exact tire's sidewall marking and to match that with the wheel style being used on the car.

Many collector-car wheel and tire combinations depend on whether the wheel itself is suited to tube-type or tubeless service, and older specialty sports cars can vary further if wheels have been changed over the years. Confirming tube requirements before installation is more important than assuming one rule applies to every 550-16 product in the category.

A 1958 Arnolt-Bristol should be stored in a cool, dry space away from direct sunlight, electric motors, battery chargers, welders, and other ozone-producing equipment that can age rubber prematurely. Keep the tires clean, maintain proper inflation, and move the car periodically or place it on stands if it will sit for a long period. Bias-ply tires can take a temporary set more readily than modern radials during static storage.

Those steps help preserve both appearance and drivability on a collector car that may spend more time parked than driven. Flat spotting, sidewall weathering, and moisture exposure all work against older-style tire construction, so thoughtful storage is one of the easiest ways to protect a rare Arnolt-Bristol between events, maintenance cycles, and occasional road use.

Tire age matters more than mileage on a 1958 Arnolt-Bristol, especially because many collector cars see limited use. A good rule is to inspect tires closely once they reach five to seven years of age and to consider replacement around the ten-year mark regardless of remaining tread. The DOT date code on the tire is the best way to establish its actual age.

That timeline is particularly important on a specialty sports car that may look ready for the road while the rubber has quietly aged out. Even if the tread still appears deep, age-related hardening and cracking can reduce confidence and change how the car feels, so replacement decisions should be driven by condition and age rather than by miles alone.

Tires on a 1958 Arnolt-Bristol should be inspected before every drive and again before any longer outing. Check for sidewall cracking, tread separation, punctures, bulges, irregular wear, and pressure loss, and make sure the spare is in comparable condition. If your wheel-and-tire setup uses tubes, include the valve stems and any signs of tube-related leakage in that check.

Frequent inspection makes sense because collector cars often sit for long intervals and then return to road use without the steady wear patterns of a daily driver. Catching a small issue in the garage is far preferable to discovering it on a rare-car tour or highway run, particularly in a lightweight 1950s sports car with direct steering and little insulation from road feel.

A 1958 Arnolt-Bristol MKII belongs to an era when bias-ply construction was the standard factory fitment type, and the listed replacement size for the model is 550-16. That aligns with period practice for a low-volume 1950s sports car using a numeric-size tire rather than a later metric radial format. Original-brand fitment can vary by market, distributor, or restoration history, so the construction type and size matter more than assuming one universal brand.

For most restoration work, starting with a 550-16 bias-ply tire is the right path if the goal is to stay faithful to the car's period specification. If you are preparing the car for marque judging, confirm sidewall treatment and any market-specific details with club records, period photos, and Arnolt-Bristol specialists rather than relying on general assumptions about 1950s sports-car equipment.

Correct tire fitment matters on a 1958 Arnolt-Bristol because judges and knowledgeable enthusiasts often notice size format, construction type, and sidewall presentation immediately. On a car from 1958, a numeric bias-ply size such as 550-16 is aligned with period expectations, while an obviously modern construction or an out-of-character sidewall treatment can change the car's visual authenticity.

That does not mean every event uses the same standard, but it does mean tire choice influences how convincingly the car reflects its era. Before showing the car, compare your planned tire against period imagery and any Arnolt-Bristol club guidance so the final look supports the restoration rather than becoming an easy deduction point during judging.

For a 1958 Arnolt-Bristol, the BFGoodrich 550-16 option is a bias-ply tire with a 2.25-inch wide whitewall, while the Excelsior 550-16 is a bias-ply blackwall tire. Both share the same basic size and 16-inch fitment, and the Excelsior listing also includes a 3.25 to 4.00 inch rim-width range. The biggest visible difference between the two is the sidewall treatment rather than the size itself.

That makes the choice especially important on a restoration where appearance carries real weight. A blackwall Excelsior keeps the presentation lean and sporting, while the BFGoodrich wide whitewall pushes the car toward a more stylized period look, so the better match depends on whether your Arnolt-Bristol is being restored for historical restraint or a more dramatic visual finish.

1958 Arnolt-Bristol tires can be suitable for highway use when they are the correct size, properly installed, and in sound condition. The available 550-16 fitment is offered in bias-ply construction, and one listed product carries an 80L marking, which corresponds to a 75 mph speed capability for that tire. On a 1950s specialty sports car, overall mechanical condition often matters just as much as the tire itself at ordinary road speeds.

A highway-ready setup depends on more than just choosing the correct size. Before sustained road use, make sure the tires are fresh, evenly worn, and properly inflated, and remember that steering, braking, suspension condition, and alignment all influence how secure an Arnolt-Bristol feels at speed, especially compared with a newer vehicle.

Inflation pressure on a 1958 Arnolt-Bristol should be set according to the vehicle's original guidance and the limits shown for the exact tire you choose. In the 550-16 category, one listed Firestone tire shows 840 pounds at 32 psi, while the Avon 550-16 80L lists a 992-pound maximum load figure without the same pressure format attached. Those figures are product-specific ratings, not a blanket pressure instruction for every 550-16 tire.

Use the owner's manual or trusted marque literature for the car's recommended operating pressure, then confirm that your chosen reproduction tire is being run within its stated limits. Avoid transferring one product's pressure figure to another tire by assumption, since tires in the same size can still differ in construction details and rated service information.

Before a longer drive in a 1958 Arnolt-Bristol, inspect each tire for cracking, cuts, bulges, exposed cords, uneven wear, and stable air pressure. Confirm that the spare is serviceable, the valve stems are sound, and the wheel fasteners are secure. Tire condition should be part of a broader pre-drive check that also covers brakes, fluids, cooling, steering, and charging on a car of this age.

That extra attention pays off because a low-production 1950s sports car can be mechanically healthy in one area while hiding age-related issues in another. If the tires pass inspection and the rest of the car is equally sorted, the drive is more likely to feel enjoyable and predictable rather than becoming an on-road troubleshooting session.