The 1972 Mercedes-Benz 300 belongs to the era when Mercedes-Benz built large sedans with a strong emphasis on engineering, highway composure, and formal luxury. For owners preserving that character, tire choice matters as much as the wheel itself. This model uses either a 185R14 radial or a 735-14 bias-ply on a 14-inch rim, so the real decision is not only size but also construction. Available choices include blackwall and narrow whitewall styles, with radial offerings from Michelin, Phoenix, and Vredestein and bias-ply options in BFGoodrich’s Silvertown Classic Bias Ply series. The right selection depends on whether the goal is period-style appearance, traditional ride character, or a modern radial alternative within the proper fitment range.
Which Tire Size Is Right for The 1972 Mercedes-Benz 300
The 1972 Mercedes-Benz 300 uses two primary tire sizes, and both fit a 14-inch rim. The key difference is construction: 185R14 is the radial fitment, while 735-14 is the bias-ply fitment also used on the 300 SEL/8 sub-model. Choosing between them starts with deciding whether the car should remain on a period-style bias-ply tire or move forward with a radial setup in the correct size family.
185R14 is a Euro-metric radial size in which 185 identifies nominal section width in millimeters, R indicates radial construction, and 14 is the wheel diameter in inches. On a 1972 Mercedes-Benz 300, this size reflects the more modern radial approach while staying within the vehicle’s proper 14-inch fitment. Available choices include blackwall and narrow whitewall versions from Michelin, Phoenix, and Vredestein, including Michelin MXV and Vredestein Sprint Classic series. This size makes sense for owners who want a radial tire in a traditional profile with room to compare sidewall appearance and brand character.
735-14 is a numeric bias-ply size, with 7.35 representing nominal section width in inches and 14 indicating the wheel diameter. For the 1972 Mercedes-Benz 300, it serves buyers who want to retain the original-style bias-ply construction approach rather than move to a radial. BFGoodrich offers this size in the Silvertown Classic Bias Ply series with either blackwall or narrow whitewall presentation. It is the size to evaluate when preserving a more traditional look and tire construction is more important than adopting a radial equivalent.
Fitment is straightforward for the covered 1972 Mercedes-Benz 300 sub-model because the same two tire-size paths appear across the application. Checking the exact sub-model still matters, since the main decision is whether the car is being kept on bias-ply construction or fitted with a radial in the proper 14-inch size family.
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1972 Mercedes-Benz 300 SEL/8
The 1972 Mercedes-Benz 300 SEL/8 uses the same 14-inch tire fitment choices found in the broader 300 application, with both 185R14 radial and 735-14 bias-ply options. That gives the owner a clear path between traditional bias-ply presentation and a radial setup with more choices in brand and sidewall style.
Bias-Ply to Radial Tire Conversion for the 1972 Mercedes-Benz 300
For the original 735-14 bias-ply size, three radial-equivalent options are available. 185R14 is the 80-series metric radial equivalent, P195/75R14 is the P-metric 75-series radial alternative, and P205/70R14 is the P-metric 70-series radial alternative. These choices differ mainly by sizing convention and profile family rather than serving as automatic substitutes for one another. A recommended rim-width range of 4 to 6 inches applies to the equivalent comparison, and any conversion should be checked against wheel width, overall dimensions, and vehicle clearance.
Modern Radial Equivalents
185R14
Equivalent 80-series Metric Radial (735-14)
P195/75R14
Equivalent P-metric 75-series Radial (735-14)
P205/70R14
Equivalent P-metric 70-series Radial (735-14)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (4-6 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 1972 Mercedes-Benz 300 Tires for Sale
Available 1972 Mercedes-Benz 300 tire choices span radial and bias-ply construction, with Michelin, Phoenix, Vredestein, and BFGoodrich offerings. Buyers can compare blackwall and narrow whitewall styles, along with series such as Michelin MXV, Sprint Classic, and Silvertown Classic Bias Ply.
Common 1972 Mercedes-Benz 300 tire questions usually come down to size, 14-inch rim fitment, bias-ply versus radial construction, radial-equivalent choices, and how sidewall style affects the car’s finished look.
Tire Size & Fitment
What tire size fits a 1972 Mercedes-Benz 300?
A 1972 Mercedes-Benz 300 uses either 185R14 in radial construction or 735-14 in bias-ply construction. Both sizes are built around a 14-inch rim, so the fitment decision is tied more to tire type and intended presentation than to wheel diameter alone.
The practical next step is confirming whether the car is staying with a traditional bias-ply setup or moving to a radial in the correct size family. That choice affects not only construction, but also the available brands, sidewall styles, and rim-width specifications that should be matched to the actual wheels on the car.
What size rim does a 1972 Mercedes-Benz 300 use?
The primary tire fitments for the 1972 Mercedes-Benz 300 use a 14-inch rim diameter. That applies to both the 185R14 radial size and the 735-14 bias-ply size, so wheel diameter remains consistent even though the tire sizing systems and construction types differ.
Wheel diameter is only part of the fitment picture, especially on a collector Mercedes that may have had wheels changed over time. It is still important to confirm actual wheel width before choosing among available tires, since the radial and bias-ply products use different approved rim-width ranges within the same 14-inch diameter.
Does the 1972 Mercedes-Benz 300 SEL/8 use the same tire size?
Yes. The 1972 Mercedes-Benz 300 SEL/8 uses the same two primary tire-size paths as the broader 300 application: 185R14 in radial construction and 735-14 in bias-ply construction. The shared fitment means the sub-model does not introduce a different wheel diameter or a separate size family.
That consistency keeps the decision focused on construction, appearance, and wheel compatibility rather than chasing a unique SEL/8-only tire size. Owners still benefit from checking the actual wheels on the car, especially if it has been restored or modified, because the approved rim-width ranges differ between the radial and bias-ply options.
Bias-Ply & Radial Options
Is 735-14 a bias-ply or radial tire for the 1972 Mercedes-Benz 300?
On a 1972 Mercedes-Benz 300, 735-14 is a bias-ply tire size. It is the vintage numeric fitment choice in this application, while 185R14 is the radial size used in the same 14-inch wheel family.
That distinction matters because a bias-ply tire changes both the look and the overall selection process. A 735-14 buyer is usually balancing period-style appearance and traditional construction, while a 185R14 buyer is comparing radial options, sidewall treatments, and approved wheel widths within a more modern sizing convention.
What radial tire sizes are equivalent to 735-14?
Radial equivalents for 735-14 include 185R14 as the 80-series metric radial option, P195/75R14 as the P-metric 75-series alternative, and P205/70R14 as the P-metric 70-series alternative. These are equivalent-size comparisons for the 1972 Mercedes-Benz 300, not identical tire constructions.
The useful difference between them is the sizing format and profile family, which can affect how the tire suits the wheel and the car’s overall presentation. A recommended rim-width range of 4 to 6 inches applies to the equivalent comparison, and clearance, wheel width, and overall dimensions should all be checked before making the change.
What should I check before converting my 1972 Mercedes-Benz 300 from bias-ply to radial tires?
Start by confirming the actual wheel diameter and width on the car, then compare the intended radial size against the original 735-14 fitment family. For this application, 185R14, P195/75R14, and P205/70R14 are the radial-equivalent paths that can be considered.
Construction changes should also be reviewed in the context of the car’s full setup. Steering clearance, fender clearance, suspension condition, and the car’s intended use all deserve attention before switching from bias-ply to radial, especially on a long-wheelbase luxury sedan where preserving proper stance and wheel compatibility still matters.
Choosing the Right Tire
What should I consider when choosing a 185R14 tire for a 1972 Mercedes-Benz 300?
The first priorities are staying with the correct 185R14 size, confirming that the tire matches the car’s 14-inch wheel, and deciding whether blackwall or narrow whitewall better suits the way the sedan is being presented. Brand and tire series also matter because this size is offered by Michelin, Phoenix, and Vredestein.
Beyond size alone, compare the approved rim-width range for the specific tire and think about how the car will be used. A restoration-minded owner may focus on sidewall appearance, while a regular road-use owner may be more interested in choosing among the available radial series without stepping outside the correct fitment family.
What sidewall styles are available for 1972 Mercedes-Benz 300 tires?
The 1972 Mercedes-Benz 300 has both blackwall and narrow whitewall tire choices. In 185R14 radial form, blackwall and narrow whitewall options are available, and the 735-14 bias-ply size is also offered in blackwall and narrow whitewall versions.
That gives the buyer room to match the tire’s visual character to the car’s finish and restoration direction without changing the basic size family. Sidewall style should be chosen after the correct construction and wheel compatibility are settled, since appearance alone does not answer whether the car should stay on bias-ply or move to radial.
What brands offer tires for the 1972 Mercedes-Benz 300?
Michelin, Phoenix, and Vredestein offer radial tires for the 1972 Mercedes-Benz 300 in 185R14, while BFGoodrich covers the 735-14 bias-ply fitment. That creates a clear split between the radial and bias-ply paths rather than a single mixed product group.
Brand choice should be considered alongside construction type, sidewall style, and the specific tire series available in the correct size. A buyer comparing Michelin MXV, Vredestein Sprint Classic, Phoenix radial offerings, or BFGoodrich Silvertown Classic Bias Ply is really choosing a combination of fitment approach and presentation, not simply a name on the sidewall.
Restoration & Appearance
Which tire should I choose for a period-style 1972 Mercedes-Benz 300?
For a period-style 1972 Mercedes-Benz 300, the 735-14 bias-ply size is the most traditional starting point because it preserves the vintage numeric sizing format and bias-ply construction. The 185R14 radial remains a valid option for owners who want a more modern tire format while keeping the correct 14-inch fitment family.
The better choice depends on whether the car is being restored around appearance, road manners, or a balance of both. When exact historical presentation matters, construction, sidewall style, and tire profile should be checked against marque-specific references so the finished look supports the character of the car rather than simply filling the wheel opening.
How does tire construction affect the appearance of a restored 1972 Mercedes-Benz 300?
Tire construction affects more than ride and handling; it also changes how a restored 1972 Mercedes-Benz 300 reads visually. A 735-14 bias-ply tire presents the car in a more traditional way, while a 185R14 radial usually gives the same 14-inch wheel package a more modernized fitment impression.
Sidewall treatment plays into that choice as well, since both blackwall and narrow whitewall options are available in this application. A buyer aiming for a restrained touring-sedan look may choose differently from someone seeking a more restoration-oriented presentation, so construction and sidewall style should be considered together rather than as separate decisions.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1972 Mercedes-Benz 300?
Yes. A 1972 Mercedes-Benz 300 can be affected by aftermarket wheels, wheel-width changes, suspension alterations, or body modifications even when the tire size appears correct on paper. That is especially important here because both 185R14 radial and 735-14 bias-ply fitments share the same 14-inch diameter but use different approved wheel-width ranges.
A modified car should be checked at the wheel and fender rather than judged by size code alone. Clearance at full steering travel, actual wheel width, and the car’s ride height all deserve a close look before finalizing a tire choice, particularly when moving between bias-ply and radial construction.
What should I inspect before driving a 1972 Mercedes-Benz 300 on new tires?
Begin with the basics: confirm correct inflation, inspect the wheels for damage or corrosion, and make sure the tires seat properly on the 14-inch rims. It is also wise to look for any contact issues around the fenders or suspension once the car is back on the ground.
A collector sedan that has spent long periods parked deserves a more careful walkaround before road use. Check for uneven ride height, loose steering components, and any signs of rubbing during low-speed turns, then recheck pressure and visual condition after the first short drive to make sure the setup is settling in properly.
How should 185R14 and 735-14 tires on a collector 1972 Mercedes-Benz 300 be maintained?
Collector-car tires in either 185R14 radial or 735-14 bias-ply form should be inspected regularly for cracking, bulges, cuts, uneven wear, and slow air loss. Pressure checks matter even on a lightly used 1972 Mercedes-Benz 300, because long storage periods can hide problems until the car is put back on the road.
Storage conditions also influence long-term condition. Keeping the car away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve the tires, and occasional movement helps avoid prolonged flat spotting. Before any longer trip, a fresh inspection of tread, sidewalls, and wheel condition is a sensible part of putting the car back into service.