1963 Mercedes-Benz 220 Tires

The 1963 Mercedes-Benz 220 uses two primary tire sizes: 185R13 in radial construction and 725-13 in bias-ply construction. Both sizes are built for 13-inch rims, so the choice is not about changing wheel diameter so much as deciding which tire construction and visual presentation best match the car.

That distinction matters because a radial-equipped car and a bias-ply-equipped car can feel and look different even when the rim diameter stays the same. Before selecting a tire, confirm what is currently on the car, check the wheel width, and make sure the intended size aligns with the vehicle’s present setup and appearance goals.

The applicable tire sizes for the 1963 Mercedes-Benz 220 both use a 13-inch rim diameter. That includes the 185R13 radial size and the 725-13 bias-ply size, so the wheel diameter remains consistent across the two primary fitment paths for this model.

Rim diameter is only one part of the decision, though, because wheel width still affects which tire is suitable. A 13-inch wheel that has been changed from stock dimensions, replaced with an aftermarket wheel, or altered for appearance can influence whether a particular radial or bias-ply option is the better match.

The covered 1963 Mercedes-Benz 220 B, SB & SEB sub-models share the same tire-size choices. Each of those sub-models can use either the 185R13 radial fitment or the 725-13 bias-ply fitment, both built for 13-inch wheels.

Since the sub-models share the same basic tire-size options, the real question becomes how the individual car is equipped and what kind of result is desired. A restoration-minded owner may lean toward the traditional bias-ply look, while another owner may prefer the radial format and should verify wheel width and overall clearance before switching.

On the 1963 Mercedes-Benz 220, 725-13 is the bias-ply tire size. It is a vintage numeric bias-ply format, while 185R13 is the radial fitment used on the same model. The two sizes share the same 13-inch rim diameter but represent different tire constructions.

That makes 725-13 the better starting point for owners who want a more traditional period-style look and sidewall shape. A car being converted away from bias-ply should be checked carefully for wheel width, suspension condition, and body clearance, because matching rim diameter alone does not make every alternative automatically suitable.

Radial equivalents for 725-13 include 185R13 as the 80-series metric radial option, P185/75R13 as the 75-series P-metric radial option, and P205/70R13 as the 70-series P-metric radial option. These are equivalent-size choices tied to the 725-13 bias-ply fitment rather than additional primary tire sizes for the car.

Each equivalent follows a different sizing convention, so the practical comparison is not just the number on the sidewall. The recommended rim-width range given for these equivalents is 4 to 6 inches, and the final decision should also account for actual wheel dimensions, steering clearance, and the way the individual car is currently set up.

Start by confirming the wheel diameter and width, then compare the intended radial equivalent against the car’s current setup. For a 725-13 bias-ply application, radial alternatives include 185R13, P185/75R13, and P205/70R13, with a recommended rim-width range of 4 to 6 inches for the equivalent fitment path.

A careful conversion also means checking fender and steering clearance, looking at suspension condition, and verifying that the tire’s overall size works with the car as it sits today. Cars with replacement wheels, alignment changes, or previous suspension work deserve extra attention before moving from a bias-ply format to a radial alternative.

The main choice is between the 725-13 bias-ply fitment and the 185R13 radial fitment, both designed for 13-inch rims. That decision shapes the car’s appearance and the type of product available, since the bias-ply selection includes BFGoodrich Silvertown Classic Bias Ply options while the radial side includes Michelin XAS-FF.

After choosing construction, look at the details that matter for your car’s purpose: blackwall or wide whitewall styling, wheel width, and whether the goal is a restoration-oriented presentation or a more radial-focused road setup. Matching the tire to the car’s actual wheels is just as important as matching the size stamped on the sidewall.

The available sidewall styles for the 1963 Mercedes-Benz 220 include blackwall and wide whitewall. Blackwall appears in both the radial and bias-ply offerings, while the wide whitewall treatment is available in the 725-13 BFGoodrich Silvertown Classic Bias Ply line.

That gives owners a clear appearance choice depending on how formal or traditional the finished car should look. A blackwall usually keeps the presentation understated, while a wide whitewall leans more heavily into a period-style visual statement. Sidewall style should be chosen alongside construction type, not as a separate afterthought.

Two tire series are available for the 1963 Mercedes-Benz 220 within the applicable sizes: Michelin XAS-FF in the 185R13 radial fitment and Silvertown Classic Bias Ply in the 725-13 bias-ply fitment. Those series reflect the broader choice between a Euro-style radial format and a traditional bias-ply construction.

Series matters because it helps define the character of the tire beyond simple size alone. One owner may be focused on preserving a classic bias-ply profile, while another may want a radial offering that still suits the car’s period. Once the series direction is clear, compare sidewall style and wheel compatibility before deciding.

For a period-style 1963 Mercedes-Benz 220, the 725-13 bias-ply size is the most traditional visual starting point. Its numeric bias-ply format and availability in the Silvertown Classic Bias Ply series make it the closer match to the type of presentation many restoration-minded owners want from a sedan of this era.

Appearance goals still vary, so the next step is deciding whether a blackwall or 2.25-inch wide whitewall better suits the car’s trim and overall finish. If exact historical accuracy matters, compare the tire choice against marque references, period photos, or vehicle-specific restoration documentation before finalizing the sidewall style.

Tire construction changes more than ride character on a restored 1963 Mercedes-Benz 220; it also changes how the car sits visually. A 725-13 bias-ply gives the car a more traditional sidewall shape and vintage presentation, while a 185R13 radial brings a later-style radial format that can look subtly different even on the same 13-inch wheel.

That is why restoration decisions usually start with the intended finish of the car rather than the tire alone. A preservation-focused build may favor the bias-ply route, while a driver-oriented restoration may still look appropriate on a radial. Sidewall treatment, wheel design, and stance should all be considered together.

Yes, modifications can affect tire fitment on a 1963 Mercedes-Benz 220 even when the intended tire size is otherwise appropriate. Changes such as aftermarket wheels, altered wheel width, suspension work, ride-height changes, or body repairs can influence how a 185R13 radial or 725-13 bias-ply tire sits in the wheel opening.

A car that has been lowered, fitted with replacement wheels, or repaired around the fender area should be inspected closely before new tires are installed. Checking wheel dimensions, steering travel, and visible clearance at the inner and outer edges helps prevent fitment surprises that a simple sidewall-size match will not reveal.

Before driving a 1963 Mercedes-Benz 220 on new tires, inspect the wheels, valve stems, and overall tire seating, then confirm inflation and look for any immediate clearance concerns. It also makes sense to check the steering from lock to lock and inspect nearby suspension and brake components while the car is still at rest.

A collector-era sedan that has spent time parked deserves a broader look before regular road use begins. Examine the rest of the chassis for looseness, verify there is no rubbing under load, and recheck pressure after the first few drives. Early attention to these basics helps the new tires perform as intended.

Tires on a collector 1963 Mercedes-Benz 220 should be inspected regularly for pressure loss, tread wear, sidewall cracking, cuts, bulges, and signs of age-related deterioration. That advice applies whether the car is running 725-13 bias-ply tires or a 185R13 radial, because low annual mileage does not prevent rubber from aging.

Storage conditions matter almost as much as road use on a collector car. Keeping the vehicle away from prolonged sunlight, heat, moisture, and ozone sources can help preserve tire condition over time. It is also wise to examine the tires before longer drives rather than assuming a seldom-used car is automatically road-ready.