1968 Mercedes-Benz Tire Fitment Guide

1968 Mercedes-Benz vehicles use 185R13, 700-13, 725-13, 175R14, 695-14, 185R14, 735-14, 195R14, FR70-14, and 900-15 depending on model. The 190 uses 185R13 or 700-13; the 200 uses 700-13 or 725-13; the 220 uses 175R14 or 695-14; the 230 uses 175R14, 695-14, 185R13, or 700-13; the 250 uses 175R14, 695-14, 185R14, or 735-14; the 280 uses 185R14, 735-14, or 195R14; the 300 uses 185R14, 735-14, or FR70-14; and the 600 uses 900-15.

Wheel diameter is the first dividing line. Some models stay on 13-inch wheels, several use 14-inch wheels, and the 600 stands alone on 15-inch fitment. Where rim-width guidance is available, 700-13 fits 4.00 to 5.00-inch rims, 725-13 fits 4.50 to 5.50, 175R14 fits 4.5 to 6.0, 695-14 fits 5.00 to 6.00, 185R14 fits roughly 4.00 to 6.50, 735-14 fits 5.00 to 5.50, FR70-14 uses a 6-inch rim, and 900-15 fits 6.50 to 7.00-inch rims. Confirm the actual wheel on the car before choosing between sizes that a model family may share.

On a 1968 Mercedes-Benz, 700-13 is a numeric bias-ply size. The 7.00 figure is the nominal section width in inches, while 13 is the wheel diameter in inches. That format belongs to the bias-ply era and appears on the 190, 200, and 230. Firestone offers it as a wide whitewall with a 1,270-pound load rating at 32 psi and a rim-width range of 4.00 to 5.00 inches.

The practical takeaway is that 700-13 is not a modern metric radial designation, so it should be understood as an original-style fitment path rather than a contemporary passenger-car replacement size. If your 1968 Mercedes-Benz still wears 13-inch wheels and you are restoring the car for period appearance, 700-13 keeps you within the visual and construction language of the era. Compare it carefully against 185R13 only on the models that accept both sizes, since the two sizes also reflect different construction philosophies.

On a 1968 Mercedes-Benz, 185R14 is a Euro-metric radial size. The 185 refers to nominal section width in millimeters, the R identifies radial construction, and the 14 is the wheel diameter in inches. This size appears on the 250, 280, and 300. It is available in blackwall and narrow whitewall form from Michelin, Phoenix, and Vredestein, with H-rated versions carrying a 130 mph speed ceiling.

That format matters because it reflects the European radial sizing language that was becoming increasingly relevant in this period, especially on higher-end cars. On a 1968 Mercedes-Benz, 185R14 generally points you toward a more modern-feeling road tire than a same-wheel-diameter numeric bias-ply option such as 735-14. Before choosing among brands, verify whether the wheel falls within the supported rim-width range, which spans roughly 4.00 to 6.50 inches depending on the exact tire.

No. 1968 Mercedes-Benz fitment varies widely across the range, and some models carry multiple accepted sizes that reflect different wheel diameters or different construction eras. The compact 190 and 200 stay in the 13-inch family, the 220 through 300 generally use 14-inch fitments, and the 600 uses a 15-inch 900-15 size. Even within the 14-inch group, a 220 and a 300 do not automatically share the same radial or bias-ply options.

That is why identifying the model is more important here than it is on some year-make pages where every vehicle shares one size. A buyer with a 1968 Mercedes-Benz 230, 250, 280, or 300 can quickly end up comparing several valid sizes, but not every one belongs on every car. Once you know the model and the wheel diameter on the car, you can narrow the choice to the correct fitment family and then decide whether appearance, originality, or driving character should guide the final selection.

Many 1968 Mercedes-Benz models can be approached in two ways: a numeric bias-ply size such as 700-13, 695-14, or 735-14, or a radial metric counterpart such as 185R13, 175R14, or 185R14. The bias-ply sizes are the more traditional period-style route, while the radial sizes reflect the European move toward modern radial construction. The 600 is different, using only the 900-15 bias-ply family in this range, while certain model-specific sizes such as 195R14 and FR70-14 narrow the choice further.

Choose bias-ply when originality, period sidewall styling, and era-correct presentation are the priority. Choose radial when your model supports it and your goal is a more modern road-going character within a period-appropriate overall size family. The best decision usually comes after you decide how the car will be used: concours-minded restoration, occasional fair-weather touring, or regular collector driving. A quick check of the wheel diameter and the exact model family will keep the choice grounded before you compare brands and sidewall treatments.

1968 Mercedes-Benz tires are available in several sidewall presentations depending on size: blackwall, wide whitewall, narrow whitewall, dual-redline, raised white letter, dual-white-stripe, and triple-white-stripe. The more formal sedan and luxury fitments often lean naturally toward blackwall or restrained whitewall treatments, while FR70-14 appears as a raised-white-letter performance-style radial and 900-15 reaches into broader stripe combinations suited to a large prestige car’s visual presence.

For a restoration-minded owner, sidewall style can matter almost as much as size and construction because it strongly affects how authentic the finished car looks. A blackwall radial often suits a European executive sedan appearance, while a narrow or wider whitewall can shift the car toward a more market-specific period look. If you are preparing a 1968 Mercedes-Benz for shows, compare your sidewall choice against period photography and club guidance, especially on the 600 where whitewall treatment can change the car’s character dramatically.

1968 Mercedes-Benz sizes are covered by Michelin, Firestone, BFGoodrich, Vredestein, US Royal, Phoenix, Goodyear, and M&H Racemaster. Michelin appears in 185R13, 175R14, and 185R14 radial applications; Vredestein covers 175R14 and 185R14 radials; Firestone covers 700-13; BFGoodrich appears in 725-13, 695-14, 735-14, and 900-15; US Royal also covers 695-14; Phoenix appears in 185R14; Goodyear covers FR70-14; and M&H Racemaster appears in 900-15.

That variety is useful because it lets the buyer choose not just a size, but also a visual and historical direction. Michelin and Vredestein fit naturally into a European radial conversation, while BFGoodrich, Firestone, and US Royal give strong bias-ply and whitewall options where originality or period style matters most. The right brand choice for a 1968 Mercedes-Benz usually follows from the size first, then the construction, then the sidewall look that best matches the specific model and the kind of restoration you are building.

Rim-width guidance for 1968 Mercedes-Benz tires depends on size. 700-13 fits 4.00 to 5.00-inch rims, 725-13 fits 4.50 to 5.50, 175R14 fits 4.5 to 6.0, 695-14 fits 5.00 to 6.00, 185R14 fits roughly 4.00 to 6.50 depending on the tire, 735-14 fits 5.00 to 5.50, FR70-14 uses a 6-inch rim, and 900-15 fits 6.50 to 7.00-inch rims. Those ranges are broad enough to cover several wheel applications, but they are not interchangeable across every model.

The key point is that tire size and wheel width need to be matched together, not chosen separately. A 14-inch Mercedes wheel can still be wrong for a given 14-inch tire if the width falls outside the supported range. On a 1968 Mercedes-Benz with multiple possible sizes, especially the 230, 250, 280, or 300, check the wheel before assuming that another same-diameter size will mount and present correctly. That step is especially important when the car has had wheel changes at some point in its life.

Some 1968 Mercedes-Benz radial products are clearly tubeless, while many bias-ply products do not carry a tube marking in the size itself. 185R13 and several 175R14 and 185R14 radial offerings appear as TL tubeless tires. Bias-ply sizes such as 700-13, 725-13, 695-14, 735-14, and 900-15 should be treated with more caution because tube use depends on the exact tire design and, just as importantly, the wheel construction and condition.

The practical rule is to decide tube use by the combination of tire and wheel, not by habit or assumption. Original wheels with rivets, corrosion, or older bead-seat designs may call for a different approach than later sealed wheels. Before fitting a 1968 Mercedes-Benz, inspect the wheels carefully and confirm the specific tire’s sidewall marking. That matters as much on a collector sedan as it does on the large 600, where weight and storage time can put extra demands on air retention and valve-stem condition.

Not automatically. Some 1968 Mercedes-Benz models have multiple accepted sizes that share a wheel diameter, but that does not mean every wheel width is suitable for every size. A 250, for example, can fall within both 175R14 and 185R14 radial families as well as 695-14 and 735-14 bias-ply families, yet those sizes do not all share the same supported rim-width range. The same caution applies wherever a model has more than one fitment path.

Original wheels can often remain part of the solution, but only after you confirm both diameter and width. If your 1968 Mercedes-Benz still wears factory wheels, measure them and compare that measurement to the tire you plan to run rather than choosing by appearance alone. This is especially helpful on cars that have passed through several owners, since replacement wheels from a related Mercedes model can look correct while changing the tire options available to you.

A stored 1968 Mercedes-Benz should sit in a cool, dry, dark space away from direct sunlight, electric motors, welders, battery chargers, and other ozone-producing equipment. Keep the tires clean, maintain inflation, and move the car periodically if possible. Bias-ply tires are especially prone to temporary flat spotting after long static periods, while any collector tire can suffer sidewall aging if the car sits under load for months in a harsh environment.

For longer storage, clean the tires, place the car on a smooth surface, and consider reducing load through careful repositioning or stands used correctly under the chassis rather than under suspension components that should remain loaded. A 1968 Mercedes-Benz 600 or other heavier model benefits from special attention here because weight and long inactivity can stress the carcass more quickly. Tire covers and climate control are worthwhile if the car lives in a garage with large seasonal temperature swings.

On a collector 1968 Mercedes-Benz, tire age usually matters more than tread wear. A sensible rule is to evaluate tires closely once they reach the five- to seven-year range and to consider replacement around ten years regardless of how much tread remains. The DOT date code is the starting point, but it should be weighed alongside storage conditions, heat exposure, inflation history, and whether the tire has spent long periods supporting the car without movement.

Classic Mercedes cars often accumulate low annual mileage, so an older tire can look respectable while still aging out internally. That is why a 1968 Mercedes-Benz used for weekend drives or occasional shows should not be judged by tread depth alone. If the car has been dormant for years, inspect the full sidewall, tread shoulders, and bead area before returning it to road use. Replacement timing should be conservative on higher-speed touring cars and especially on heavier models with greater load demands.

Tires on a 1968 Mercedes-Benz should be checked before every drive and given a more thorough inspection before any longer outing. Look for cracks, bulges, exposed cords, irregular wear, punctures, and pressure loss. On cars using tube-type-compatible setups or older wheels, pay close attention to valve stems and any signs that the tire has shifted or lost air while parked.

A quick visual walkaround catches many of the problems that turn a pleasant classic-car drive into an avoidable roadside stop. Because a 1968 Mercedes-Benz may spend weeks between uses, one inspection at the start of the season is not enough. Put your hands on the sidewalls, check pressures with a gauge, and inspect the spare as well. Touring farther from home calls for an extra check, since age-related issues often reveal themselves only after the tire has been heat-cycled again.

For a 1968 Mercedes-Benz 190, the original-era conversation centers on 13-inch fitments and the broader transition period between traditional bias-ply sizing and radial adoption. The two accepted sizes associated with the 190 are 185R13 and 700-13, which reflect that overlap. In general historical terms, a late-1960s Mercedes could plausibly appear with either a bias-ply or a European radial approach depending on market, specification, and owner preference, but the construction type itself is one of the first authenticity clues judges and marque enthusiasts notice.

That means the right answer for a restoration depends on the standard you are trying to meet. A local preservation-minded car may simply need a size and sidewall look that suits the car’s period character, while a stricter show car may require market-specific research into how that exact 1968 Mercedes-Benz 190 was delivered. Use period photos, owner literature, and Mercedes-Benz club resources to verify whether a blackwall radial or a numeric bias-ply is the more authentic direction for your particular car.

Yes, correct tire fitment matters on a shown 1968 Mercedes-Benz because judges and knowledgeable enthusiasts often notice tire size, construction, and sidewall treatment immediately. A radial where a bias-ply presentation is expected, an overly American-looking sidewall on a formal European sedan, or the wrong wheel-diameter family can all distract from an otherwise accurate restoration. Even where more than one accepted size exists for a model, the visual effect still needs to match the car’s era and intended market character.

The closer the event is to concours or marque-specific judging, the more important those distinctions become. A whitewall width that looks natural on a 600 may look out of place on a smaller 220, while a raised-white-letter FR70-14 creates a very different impression than a blackwall 185R14 on a 300. If your 1968 Mercedes-Benz is being prepared for formal judging, compare tire details against club standards and event rules before making final choices about size, construction, and sidewall style.

For a 1968 Mercedes-Benz in 185R14, Michelin MXV and Vredestein Sprint Classic cover a similar radial fitment space but differ in presentation and published details. Michelin MXV appears in blackwall and narrow whitewall forms with rim-width coverage stretching from about 4.00 to 6.50 inches depending on version, while Vredestein Sprint Classic appears as a blackwall with a 4.5 to 6.0-inch rim-width range. The Vredestein also carries a stated load rating of 1,323 pounds at 51 psi, while Michelin examples show H speed rating in the size marking.

That makes the choice less about raw fitment and more about the look and setup you want on the car. A 1968 Mercedes-Benz owner seeking a whitewall radial in 185R14 will naturally be drawn to the Michelin option, while a blackwall touring presentation opens the door to either brand. Wheel width can help break the tie, especially if your rims sit near the edge of the supported range. Compare sidewall style, speed marking, and wheel width together rather than choosing by brand name alone.

Yes, 1968 Mercedes-Benz tires can be suitable for highway driving when they are the correct size, in good condition, and used within their construction and speed-rating limits. Among the radial options, several 175R14, 185R13, and 185R14 products carry H ratings, which correspond to a 130 mph ceiling. Bias-ply products here generally do not show modern speed-letter markings in the same way, so their safe use depends more heavily on conservative operation, proper inflation, and the overall condition of the car.

In normal collector-car use, the tire’s posted speed ceiling is rarely the only concern. A 1968 Mercedes-Benz is also limited by braking distances, suspension condition, alignment, steering wear, and the realities of a decades-old chassis at sustained speed. Highway use should begin with a fresh inspection, correct pressures, and honest expectations about how the car is meant to feel on the road. If long-distance touring is the plan, a radial-equipped car will usually be the more natural starting point than a strictly period-style bias-ply setup.

Inflation pressure on a 1968 Mercedes-Benz should follow the vehicle maker’s recommendation first, with the tire’s own rated pressure used as a product limit rather than a universal setting. Several sizes here include load-and-pressure references: 700-13 at 1,270 pounds and 32 psi, 725-13 at 1,360 pounds and 32 psi, 695-14 at 1,230 pounds and 32 psi, 735-14 at 1,360 pounds and 32 psi, FR70-14 at 1,500 pounds and 32 psi, and 900-15 at 1,920 pounds and 32 psi. Some radial products also show higher pressure values tied to their load rating.

The key is not to transfer one tire’s pressure figure to another size or construction type. A 175R14 radial and a 735-14 bias-ply may share a wheel diameter but should not be treated as though they use the same inflation strategy. Start with the owner’s manual or factory placard for your exact 1968 Mercedes-Benz model, then compare that recommendation with the tire maker’s published load-and-pressure information. After that, monitor wear and handling rather than guessing from sidewall maximums alone.

Before a longer trip in a 1968 Mercedes-Benz, inspect every tire for cracking, weathering, cuts, bulges, punctures, and uneven wear, then verify cold pressure with a gauge. Check that valve stems are sound and that the spare is usable and inflated. On models running large whitewall or specialty bias-ply tires, take extra time to inspect the full sidewall circumference, since cosmetic sidewall damage can hide age-related deterioration more easily than on a plain blackwall tire.

Tire condition is only one part of a proper departure check on a car of this age. A 1968 Mercedes-Benz headed out for a longer drive should also have its brakes, steering, fluids, belts, and lights reviewed so the tire is not being asked to compensate for broader mechanical issues. If the car has been sitting, begin with a shorter local drive before committing to highway miles. That shakedown often reveals vibration, pull, or pressure loss while you are still close to home.