The 1955 Mercedes-Benz 220 sits in an interesting postwar Mercedes-Benz period, bridging formal touring comfort with the engineering precision that made the brand so respected in export markets. For today’s owner, tire selection is not a one-size-fits-all matter, because the 1955 Mercedes-Benz 220 appears with both 13-inch and 15-inch wheel fitments and with either period bias-ply sizing or radial sizing depending on sub-model. That opens the door to different visual presentations, from blackwall to whitewall bias-ply choices on 640-15, while also keeping radial options in the conversation. The right choice starts with confirming the exact 220 variant and wheel diameter before deciding how closely to follow a restoration-oriented look or a road-use-minded setup.
Which Tire Size Is Right for The 1955 Mercedes-Benz 220
The 1955 Mercedes-Benz 220 uses four primary tire sizes, and the correct one depends first on the exact sub-model and wheel diameter. Two sizes are built around 13-inch rims and two around 15-inch rims, with both radial and bias-ply fitments represented. Before choosing a tire, confirm whether the car is a 220 A & S or a 220 Base, then verify the wheel diameter actually on the car.
175R13 is a Euro-metric radial size in which 175 indicates nominal section width in millimeters, R identifies radial construction, and 13 refers to the wheel diameter in inches. On the 1955 Mercedes-Benz 220, this size belongs to a 13-inch wheel setup and represents a more modern radial sizing convention than the period numeric bias-ply alternatives. Its practical appeal is straightforward road-use radial construction while staying within a vintage-compatible size format. This is the size to evaluate if the car is one of the covered 13-inch-wheel sub-model configurations and a radial setup is already part of the plan.
6.70-13 is a numeric bias-ply size, with 6.70 indicating nominal section width in inches and 13 identifying the wheel diameter. This format reflects the period-style sizing language many mid-1950s cars used, and it matters for owners who want the traditional look and construction character associated with a bias-ply setup. Its value on a 1955 Mercedes-Benz 220 is less about modern metric notation and more about preserving a vintage tire presentation on the correct 13-inch wheel diameter. Use this size only after confirming the car’s sub-model and existing wheel setup.
175R15 is a Euro-metric radial size that uses a 175-millimeter nominal section width, radial construction, and a 15-inch rim diameter. For the 1955 Mercedes-Benz 220, this size belongs to the 15-inch-wheel fitment used on the Base configuration rather than the 13-inch arrangement. It gives buyers a radial-format option within the larger wheel diameter family, which can be useful when the goal is road use with a vintage-appropriate overall scale. The main decision here is not just construction, but making sure the car truly has the 15-inch wheel and matching sub-model fitment before moving forward.
640-15 is a numeric bias-ply size, with 6.40 inches as the nominal section width and 15 inches as the wheel diameter. This is the most product-rich fitment on the 1955 Mercedes-Benz 220, with choices from BFGoodrich, Firestone, Avon, and Excelsior across blackwall, narrow whitewall, and wide whitewall presentations in several bias-ply series. That variety makes 640-15 especially relevant for buyers balancing period-style appearance, brand preference, and sidewall treatment. It is the size to focus on when the car uses the 15-inch bias-ply fitment and the wheel dimensions support that selection.
Sub-model fitment matters on the 1955 Mercedes-Benz 220 because tire size changes with the exact version of the car. The first step is confirming whether the vehicle is a 220 A & S or a 220 Base, since that determines both wheel diameter family and whether you are comparing radial and bias-ply options within the right size group.
1
1955 Mercedes-Benz 220 A & S
The 1955 Mercedes-Benz 220 A & S uses the 13-inch tire fitment group, with both a radial and a bias-ply size associated with that setup. Tire selection here centers on confirming the 13-inch wheels first, then deciding whether the goal is a more traditional period-style bias-ply presentation or a radial-format alternative within the same wheel diameter.
The 1955 Mercedes-Benz 220 Base uses the 15-inch tire fitment group, pairing a radial option with the 640-15 bias-ply size. That gives the Base model owner the clearest range of visible choices, especially if sidewall appearance and restoration-oriented style matter as much as matching the correct wheel diameter.
Bias-Ply to Radial Tire Conversion for the 1955 Mercedes-Benz 220
For the original 640-15 tire size, three radial-equivalent options are available. 175R15 is the 80-series metric radial equivalent, P175/75R15 is the P-metric 75-series radial alternative, and P185/70R15 is the P-metric 70-series radial alternative. These options differ mainly by sizing convention and profile family rather than serving as automatic substitutes for one another. A recommended rim-width range of 5 to 6 inches applies, and any conversion should be checked against wheel dimensions, overall tire size, and clearance on the car.
Modern Radial Equivalents
175R15
Equivalent 80-series Metric Radial (640-15)
P175/75R15
Equivalent P-metric 75-series Radial (640-15)
P185/70R15
Equivalent P-metric 70-series Radial (640-15)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (5-6 in) and load needs match your vehicle specifications.
Check fender clearance, steering clearance, and stance before installation.
Consider suspension condition and intended road use when choosing equivalents.
Important Fitment Notes
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1955 Mercedes-Benz 220 Tires for Sale
Available 640-15 choices span BFGoodrich, Firestone, Avon, and Excelsior, with bias-ply offerings in Silvertown Classic Bias Ply, Firestone Classic Bias Ply, Super Safety Crossply, and Excelsior Bias Ply. Sidewall treatments include blackwall, narrow whitewall, and wide whitewall, giving the 15-inch fitment real appearance variety.
Owners of a 1955 Mercedes-Benz 220 usually need to sort out sub-model fitment first, then decide between period-style bias-ply sizing, radial options, and the sidewall treatment that best suits the car’s intended use and presentation.
Tire Size & Fitment
What tire size fits a 1955 Mercedes-Benz 220?
A 1955 Mercedes-Benz 220 can use 175R13, 6.70-13, 175R15, or 640-15, depending on the exact sub-model and wheel setup. The 220 A & S uses the 13-inch fitment group, while the 220 Base uses the 15-inch fitment group. Within each group, both radial and bias-ply sizing appear.
The key is not choosing from all four sizes at once, but confirming which sub-model the car is and which wheel diameter is actually installed. Many vintage Mercedes-Benz cars have seen wheel or tire changes over time, so checking the rim before ordering helps avoid choosing the right style in the wrong diameter.
What size rim does a 1955 Mercedes-Benz 220 use?
The 1955 Mercedes-Benz 220 uses either a 13-inch or 15-inch rim, depending on the specific sub-model. The 220 A & S falls into the 13-inch group, while the 220 Base uses the 15-inch group. Tire size must match that wheel diameter before any other selection factor comes into play.
A radial or bias-ply choice only matters after the rim diameter is confirmed, because a 13-inch tire cannot be substituted onto a 15-inch wheel or the reverse. Measuring the wheel and reading the existing tire size are both worthwhile on an older car, especially if its wheels may have been changed during past service or restoration work.
Do all 1955 Mercedes-Benz 220 sub-models use the same tire size?
No. The 1955 Mercedes-Benz 220 has different tire-size groups by sub-model. The 220 A & S uses 13-inch sizes, specifically 175R13 and 6.70-13, while the 220 Base uses 15-inch sizes, specifically 175R15 and 640-15. That means the fitment question starts with identifying the exact version of the car.
This matters because two cars wearing the same 220 badge may need completely different wheel-diameter fitments. Looking only at the current tire brand or sidewall style is not enough. A buyer should match the sub-model, check the wheel diameter, and then decide whether a period-style bias-ply or a radial-format option better suits the intended look and driving use.
Bias-Ply & Radial Options
Is 640-15 a bias-ply or radial tire for the 1955 Mercedes-Benz 220?
640-15 is a bias-ply tire size on the 1955 Mercedes-Benz 220. It belongs to the 15-inch fitment group used on the 220 Base and is available in traditional bias-ply construction across several product lines and sidewall treatments. It should not be confused with the radial size 175R15, which also uses a 15-inch rim.
That distinction matters because a bias-ply tire affects both the car’s appearance and the overall selection process. A buyer comparing 640-15 to a radial alternative should verify wheel width, vehicle clearance, and the intended use of the car rather than assuming any 15-inch tire in a similar size family can simply take its place.
What radial tire sizes are equivalent to 640-15?
Radial equivalents for 640-15 include 175R15 as the 80-series metric radial option, P175/75R15 as the P-metric 75-series radial option, and P185/70R15 as the P-metric 70-series radial option. A recommended rim-width range of 5 to 6 inches is associated with these radial-equivalent comparisons for the original 640-15 size.
Each of those sizes gives a different way to approach radial conversion, but they should be treated as alternatives to evaluate rather than automatic replacements. Matching the wheel width is only part of the process. It is also wise to compare the car’s available clearance and overall setup so the selected radial remains compatible with the 15-inch Mercedes-Benz wheel arrangement.
What should I check before converting my 1955 Mercedes-Benz 220 from bias-ply to radial tires?
Start by confirming the original bias-ply size and the wheel diameter on the car, then compare only the radial equivalents that match that fitment family. For a 640-15 setup, the recognized radial alternatives are 175R15, P175/75R15, and P185/70R15. The wheel should also fall within the relevant rim-width range before moving further.
Beyond size labels, the important checks are wheel width, physical tire clearance, and the condition of the suspension and steering components. A collector car may have replacement wheels, altered ride height, or worn bushings that change how a radial sits and behaves. Confirming those basics first helps keep the conversion thoughtful rather than guesswork.
Choosing the Right Tire
What should I consider when choosing a 640-15 tire for a 1955 Mercedes-Benz 220?
Choosing a 640-15 tire starts with confirming that the car is using the 15-inch fitment group associated with the 220 Base. From there, the meaningful differences are construction consistency, sidewall treatment, brand, tire series, and wheel-width compatibility. In this size, the available products remain bias-ply, so the choice is largely about presentation and specification details within that construction type.
A blackwall, narrow whitewall, or wide whitewall can change the car’s visual character just as much as the brand name on the sidewall. Rim-width requirements also deserve attention, since some 640-15 products call for slightly different wheel-width ranges. Matching the tire to the car’s wheels and restoration goals usually leads to a better outcome than choosing by appearance alone.
What sidewall styles are available for 1955 Mercedes-Benz 220 tires?
Within the 640-15 fitment for the 1955 Mercedes-Benz 220, available sidewall styles include blackwall, narrow whitewall, and wide whitewall. That gives the owner a meaningful appearance choice without changing the basic size family. The sidewall treatment can make the car look more understated, more formal, or more visibly period-inspired depending on the presentation desired.
Sidewall style should still come after the basic fitment questions are settled. A whitewall does not change the need to confirm the correct 15-inch wheel setup, and a blackwall does not automatically make one tire more suitable for the car. Once the size and wheel match are settled, appearance becomes the useful tiebreaker between otherwise appropriate options.
What brands offer tires for the 1955 Mercedes-Benz 220?
For the 640-15 fitment used on the 15-inch 1955 Mercedes-Benz 220 setup, available brands include BFGoodrich, Firestone, Avon, and Excelsior. Those choices appear across several bias-ply series, including Silvertown Classic Bias Ply, Firestone Classic Bias Ply, Super Safety Crossply, and Excelsior Bias Ply. The differences are more about style and specification than simple brand name alone.
A useful way to compare them is by looking at sidewall presentation, rim-width suitability, and the overall look you want on the car. Some owners prefer a plainer blackwall appearance, while others want a stronger whitewall statement for a restoration-oriented finish. Brand matters, but it works best as one part of a broader fitment and appearance decision.
Restoration & Appearance
Which tire should I choose for a period-style 1955 Mercedes-Benz 220?
A period-style 1955 Mercedes-Benz 220 usually starts with the correct wheel-diameter family and the corresponding bias-ply size for that sub-model. For the 13-inch group, that means 6.70-13, while the 15-inch group uses 640-15. Bias-ply construction generally gives the most traditional presentation when the goal is to keep the car visually rooted in its mid-1950s character.
Appearance still depends on how the particular car is being restored or presented. A formal sedan may look different on blackwalls than on whitewalls, even within the same size. If exact originality matters beyond period-style fitment, marque references and vehicle-specific historical documentation are worth consulting before choosing a sidewall treatment or brand presentation.
How does tire construction affect the appearance of a restored 1955 Mercedes-Benz 220?
Tire construction changes more than road feel on a restored 1955 Mercedes-Benz 220; it also influences the car’s overall stance and visual tone. A bias-ply tire such as 6.70-13 or 640-15 usually supports a more traditional mid-century appearance, while radial formats such as 175R13 or 175R15 read as a later sizing convention even when they remain visually restrained.
That does not mean one construction is automatically right for every restoration. Some owners prioritize historical presentation, while others want a road-use-minded setup that still respects the car’s era. The best result usually comes from pairing the proper wheel diameter and sub-model fitment with a sidewall style that suits the intended finish of the completed car.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1955 Mercedes-Benz 220?
Yes. Modifications can change tire fitment on a 1955 Mercedes-Benz 220 even when the chosen size is otherwise appropriate for the sub-model. Aftermarket wheels, different wheel widths, suspension work, ride-height changes, or body repairs can all alter how much space the tire has. That matters on both the 13-inch and 15-inch fitment groups.
A car that has been restored over several decades may no longer match its original wheel or suspension setup, so the size alone should not be the only checkpoint. Verifying wheel diameter, wheel width, and steering and fender clearance before mounting tires helps avoid choosing a historically sensible size that turns out to be impractical on the modified car.
What should I inspect before driving a 1955 Mercedes-Benz 220 on new tires?
Before putting a 1955 Mercedes-Benz 220 back on the road, inspect the wheels, valve stems, and the overall condition of the steering and suspension around the new tires. It is also worth confirming that the selected tire size matches the car’s actual wheel diameter and that the tires seat properly on the rims without clearance concerns.
Road readiness involves more than fresh rubber, especially on a vintage Mercedes-Benz that may sit for long periods. Checking tire pressure, watching for any unusual rubbing, and rechecking for air loss after the first drives can catch problems early. A short local drive and follow-up inspection are often smarter than heading straight into sustained highway use.
How should 640-15 tires on a collector 1955 Mercedes-Benz 220 be maintained?
640-15 tires on a collector 1955 Mercedes-Benz 220 should be maintained with regular pressure checks, periodic visual inspection, and careful storage habits. Look for cracking, cuts, bulges, uneven wear, and any slow air loss, especially if the car spends much of its life parked. Bias-ply tires on low-use collector cars still age even when tread wear remains limited.
Storage conditions have a real effect on how well vintage tires hold up over time. Keeping the car away from prolonged sunlight, moisture, and ozone sources helps preserve the tire casing and sidewalls. It also makes sense to inspect the tires before every driving season so a handsome period-style set does not become the weak point on an otherwise well-kept car.