1955 Mercedes-Benz 180 Tires

The 1955 Mercedes-Benz 180 uses two primary tire sizes: 640-13 and 700-13. Both are bias-ply tire sizes mounted on 13-inch rims, so the car does not rely on a single universal size across every covered configuration.

The practical question is which of those two sizes belongs on the specific car in front of you. Since both sizes apply within the covered 180 range, check the wheel setup, the size currently on the car, and any prior changes before selecting a replacement. That matters even more if the car has been restored, modified, or fitted with wheels that differ from its earlier configuration.

The primary tire fitments for a 1955 Mercedes-Benz 180 are built around a 13-inch rim diameter. Both 640-13 and 700-13 use that same 13-inch wheel diameter, even though the tire widths differ.

Rim diameter is only part of the fitment picture, so it helps to confirm wheel width as well before choosing a replacement tire. Available products in these sizes do not share the exact same rim-width range, and radial-equivalent options also need to be checked against wheel width, overall dimensions, and clearance. Matching the tire to both wheel diameter and wheel width keeps the selection process grounded.

The covered 1955 Mercedes-Benz 180 Base & D grouping does not point to just one tire size. It uses the same two primary 13-inch bias-ply fitment choices found on this page: 640-13 and 700-13.

That means the sub-model name alone does not settle the tire decision. A buyer still needs to confirm which size is actually on the car or which wheel setup the vehicle carries before ordering replacement tires. Looking at the existing sidewall size, measuring wheel width, and checking for any earlier restoration or fitment changes can prevent choosing the wrong width within the correct 13-inch rim diameter.

For the 1955 Mercedes-Benz 180, 640-13 is a primary bias-ply tire size. It uses the traditional vintage numeric bias-ply format rather than a modern radial sizing convention.

That distinction matters because a true bias-ply tire and a radial equivalent are not the same construction, even when they are chosen to serve a similar fitment role. Buyers who want the original-era look and a traditional sidewall presentation often stay with bias-ply, while buyers considering more modern road manners usually compare one of the stated radial alternatives after checking wheel width, dimensions, and clearance around the car.

For 640-13, the radial equivalents are 175R13, P175/75R13, P185/70R13, and 650R13 as a bias-look radial. For 700-13, the radial equivalents are 185R13, P185/75R13, and P205/70R13.

Those alternatives span several sizing conventions, from Euro-metric radial to P-metric radial, and 640-13 also has a bias-look radial choice for a more traditional visual effect. They should be treated as comparison options rather than automatic replacements. Keeping the recommended 4-6 inch rim-width range in mind is helpful, but overall dimensions, wheel compatibility, and available clearance still need to be checked on the vehicle before converting.

Start by matching the car’s primary tire size to the appropriate radial-equivalent group, then confirm that the wheel diameter and wheel width work with the radial size being considered. On this car, the primary fitments are 640-13 and 700-13, and both have radial alternatives tied to a recommended 4-6 inch rim-width range.

After the wheel is confirmed, compare the new tire’s fit within the car’s actual setup. Steering clearance, fender clearance, suspension condition, and any previous wheel or ride-height changes can all affect whether a radial alternative is a sensible choice. A buyer should also decide whether the goal is traditional period appearance, more modern construction, or a compromise such as the 650R13 bias-look radial option.

The first priority is choosing the correct primary size for the specific car, since the 1955 Mercedes-Benz 180 uses either 640-13 or 700-13. Both are 13-inch bias-ply fitments, so size confirmation comes before any brand or style preference.

Once size is settled, compare the tire’s construction, rim-width compatibility, sidewall appearance, and how closely the tire suits the car’s intended use. Some owners want a traditional bias-ply look with a wide whitewall, while others may be weighing a radial equivalent for road use. It also helps to consider load capacity and the wheel setup already on the car rather than choosing strictly by appearance.

The available products for the 1955 Mercedes-Benz 180 use a wide whitewall sidewall style. That applies to the BFGoodrich option in 640-13 and the Firestone option in 700-13.

For a mid-1950s Mercedes sedan, whitewall presentation can have a major effect on the car’s visual character even when the size remains correct. The important point is not to choose by sidewall style alone. Confirm the correct tire size first, then make sure the whitewall tire under consideration also matches the wheel width and the overall fitment direction you want, whether that is restoration-oriented bias-ply appearance or a radial-equivalent alternative.

BFGoodrich and Firestone both offer tires for the 1955 Mercedes-Benz 180 within the primary 13-inch fitment range. BFGoodrich appears in 640-13 through the Silvertown Classic Bias Ply series, while Firestone appears in 700-13 through the Firestone Classic Bias Ply series.

Brand choice should follow size and fitment, not lead it. Since the available brands are tied to different primary sizes here, the right comparison starts with confirming whether the car needs 640-13 or 700-13. After that, it makes sense to review the tire series, wide whitewall presentation, rim-width specification, and load capacity so the selected tire suits both the wheel and the intended look of the car.

A period-style approach usually starts with the car’s primary bias-ply size, either 640-13 or 700-13, rather than jumping immediately to a modern radial format. Both sizes preserve the traditional construction type associated with a mid-1950s Mercedes-Benz 180 and keep the car in a more restoration-oriented visual range.

The final choice still depends on confirming which size belongs on the car’s actual wheel setup. From there, sidewall presentation and brand become part of the appearance decision, especially since the available products use wide whitewall styling. When exact originality matters beyond a period-style look, marque-specific historical references and restoration records are the right next step before settling on one tire treatment.

Tire construction changes more than ride and handling; it also changes how a restored 1955 Mercedes-Benz 180 looks at a glance. A bias-ply tire gives the car a more traditional mid-century presentation, while a radial equivalent can alter the visual character even when chosen in a comparable size range.

That is why restoration-minded buyers often decide on construction before comparing brands or product series. A wide whitewall bias-ply tire tends to support a more authentic period impression, while a radial-equivalent choice may better suit an owner focused on road use. The right answer depends on whether the goal is historical appearance, regular driving, or a careful compromise between the two.

Yes, modifications can affect tire fitment on a 1955 Mercedes-Benz 180 even when the wheel still uses a 13-inch rim diameter. Changes such as aftermarket wheels, different wheel widths, altered ride height, suspension work, or body clearance issues can all influence whether 640-13, 700-13, or a radial equivalent is the better match.

A car that has been restored over many years may no longer match its earlier wheel and tire setup, so visual confirmation matters. Checking the current sidewall size, measuring the wheel, and looking at steering and fender clearance before ordering tires can prevent an expensive mistake. The same caution applies when considering radial alternatives, since equivalent sizing still needs to work with the car’s actual configuration.

Before road use, inspect the wheel condition, valve stems, and the overall seating of the tire on the rim, then verify inflation against the tire’s own requirements. It also makes sense to look over the rest of the tire for any shipping damage, mounting issues, or irregularities before putting miles on the car.

A collector-era sedan like the 1955 Mercedes-Benz 180 also deserves a broader check of steering, suspension, and brake condition before a serious drive. Fresh tires cannot compensate for worn components or clearance problems elsewhere in the chassis. After the first short outing, recheck pressure and look for any signs of rubbing, uneven wear, or contact marks that suggest the fitment needs another look.

Collector-car tires should be maintained with regular pressure checks, routine visual inspections, and careful storage habits. Whether the 1955 Mercedes-Benz 180 is running 640-13 or 700-13, the owner should watch for cracking, bulges, cuts, uneven tread wear, and slow air loss, especially if the car spends long periods parked.

Storage conditions matter because older vehicles often accumulate age in the tires long before they accumulate high mileage. Keeping the car away from prolonged sunlight, excess heat, moisture, and ozone-producing equipment helps preserve tire condition. It is also wise to inspect the tires before every drive rather than assuming low-use collector tires are fine simply because the tread still looks deep.