BMW 735i Tires

BMW 735i uses three tire sizes across the 1985 to 1992 span covered here. The early 1985 through 1987 cars use either 205/70R14 on 14-inch wheels or 220/55R390 on 390mm metric TRX wheels. The later 1988 through 1992 cars use 225/60R15 on 15-inch wheels.

That means the correct tire is tied to both model year and the actual wheel fitted to the car. Early BMW 735i sedans are the ones that need the closest attention because two different wheel systems appear in the same years. Check the tire sidewall currently on the car, then confirm the wheel diameter itself before choosing a replacement.

A 1985 BMW 735i can legitimately show two tire sizes because BMW used two different wheel systems in that period. One fitment is the conventional 205/70R14 on a 14-inch wheel, while the other is 220/55R390 on a 390mm metric TRX wheel. Those are not interchangeable sizes even though they appear in the same model year.

The practical step is to identify the wheel first, not just the year of the car. A TRX wheel requires the matching metric TRX tire, while a standard 14-inch wheel takes the inch-based radial. If the car has been restored or modified over time, the original build year alone is not enough to choose correctly.

BMW 735i uses more than one rim diameter in this fitment range. From 1985 through 1987, the car appears with either 14-inch wheels for 205/70R14 tires or 390mm metric wheels for 220/55R390 tires. From 1988 through 1992, the listed fitment moves to 15-inch wheels with 225/60R15 tires.

That makes wheel measurement one of the most important checks on a BMW 735i. Do not assume a metric TRX wheel is the same as a 15-inch wheel simply because the dimensions seem close. Confirm the diameter stamped on the wheel or printed on the existing tire before moving ahead with a replacement set.

A 1987 BMW 735i uses either 205/70R14 or 220/55R390, depending on which wheel system the car carries. The first size fits a conventional 14-inch wheel, while the second fits the metric Michelin TRX setup with a 390mm wheel. Both are radial tires, but they mount to different rims and cannot substitute for one another.

Start with the wheel and tire already on the car rather than relying on the model year alone. Read the sidewall carefully and verify whether the wheel is an inch-diameter rim or a metric TRX rim. That extra check matters on long-owned collector cars because wheels are often changed during restoration, service life, or cosmetic updates.

BMW 735i tires in these sizes are available with several sidewall styles, including blackwall, narrow whitewall, wide whitewall, RWL, redline, and dual-redline depending on size and series. The 205/70R14 range includes blackwall, narrow whitewall, RWL, redline, and dual-redline options. The 225/60R15 range includes blackwall, wide whitewall, RWL, and redline, while the 220/55R390 TRX offering is listed in blackwall.

For a factory-minded BMW 735i, blackwall is usually the most natural visual choice for this era, especially on later luxury sport sedans. Whitewall or redline variations can suit an owner pursuing a custom period look rather than strict originality. Match the sidewall style to the way the car is being presented, whether that is restoration, touring, or show display.

BMW 735i tires in the listed sizes are available from Maxxis, BFGoodrich, Michelin, Goodyear, and Avon. Brand coverage varies by size, with Michelin carrying both a conventional 14-inch performance radial and the metric TRX option, while BFGoodrich and Goodyear appear in the standard inch-based sizes. Avon is listed in 225/60R15.

Brand choice should come after size and wheel confirmation, not before. Once the correct fitment is established, the decision usually comes down to the appearance you want, the tire series you prefer, and how you intend to use the BMW 735i. A touring-oriented restoration may point one way, while a more performance-themed presentation may point another.

BMW 735i fitments here include several radial series: Classic Whitewall MA-1, Radial TA, Silvertown Radial, Michelin XWX, Michelin TRX-B, Eagle Gatorback, and CR6ZZ. All are radial constructions, but they differ in visual style, intended period appearance, and whether they fit a standard inch-diameter wheel or the metric TRX wheel system. Michelin TRX-B is the dedicated metric option, while the others are used on conventional inch-size wheels.

That spread gives BMW 735i owners room to prioritize originality, sidewall appearance, or a more performance-oriented look within the correct size. The key is to separate wheel-system compatibility from cosmetic preference first. Once the car's wheel diameter is confirmed, series choice becomes a matter of how closely you want the finished car to reflect its era and intended use.

A BMW 735i should be stored on a clean, dry surface away from direct sunlight, ozone sources, and major temperature swings. Tire pressure should be kept at the appropriate operating level for the fitted tire, and the car should not be left for long periods with one corner carrying extra load. Clean tires and wheels before storage so brake dust and road grime do not sit on the rubber.

If the BMW 735i will sit for extended periods, move it occasionally to prevent flat spotting and avoid parking with the tires against oil, solvents, or damp ground. Owners who maintain multiple wheel sets should label the removed assemblies by axle position. Good storage habits matter just as much on luxury sedans as on rarer collector cars because aging often harms tires long before tread is worn out.

Tires on a BMW 735i should be inspected regularly even if the car covers limited annual mileage. Check pressure, sidewall condition, tread wear, and any signs of impact damage before road use, and give the tires a closer visual inspection at least several times during the driving season. Collector cars often age their tires by time and storage conditions rather than by mileage alone.

That routine is especially important on a BMW 735i because some cars still carry older wheel systems or have seen wheel swaps over the years. Uneven wear can reveal alignment issues, suspension wear, or an incorrect tire-to-rim combination. A few minutes of inspection before a drive can prevent damage to hard-to-replace wheels and preserve the way the car rides and handles.

Tires on a BMW 735i should be replaced when age, cracking, hardening, vibration, or structural concerns appear, even if tread depth still looks usable. Collector-car tires frequently reach the end of their safe service life long before they look worn out. Visible sidewall checking, persistent flat spotting, and repeated loss of air are all signs that replacement should move up the priority list.

The age of the tire matters as much as its appearance on a low-mileage BMW 735i. Cars that spend long periods parked can preserve tread while still exposing the rubber to time-related deterioration. If the service history of the tires is unclear, have them evaluated during regular maintenance and consider replacement on age alone rather than waiting for obvious tread wear.

BMW 735i appears with more than one period-correct fitment path in these years rather than a single universal original tire. Early 1985 through 1987 cars use either 205/70R14 on conventional wheels or 220/55R390 in the Michelin TRX system, while 1988 through 1992 cars use 225/60R15. The available series include Michelin XWX, Michelin TRX-B, and several other radial options in the inch-based sizes.

For an originality-driven BMW 735i restoration, the right answer depends on the specific year and the wheel package actually fitted to the car when new. Original window stickers, build records, and marque references remain the best way to pin down a specific example. Once the wheel system is confirmed, you can choose a tire series and sidewall style that best supports the restoration goal.

Correct tire fitment can absolutely affect how a BMW 735i is judged and perceived, especially when the car is being restored as a serious collector example. Judges and knowledgeable buyers notice whether the wheel diameter, tire size, sidewall treatment, and overall stance are appropriate for the year and presentation. A car on the wrong wheel system can look visibly out of character even if the tires physically mount.

That does not mean every BMW 735i must wear the same visual treatment, but consistency matters. A preservation-minded or concours-focused car benefits from period-appropriate sizing and sidewall style, while a driver-oriented car may reasonably prioritize a different look. Marque clubs and model specialists are useful references when authenticity has a direct bearing on value or show results.

Michelin XWX and Michelin TRX-B serve different BMW 735i wheel applications in this fitment range. Michelin XWX is listed in 205/70VR14 for a conventional 14-inch wheel, while Michelin TRX-B is listed in 220/55VR390 for the metric TRX wheel system. Both are radial performance-oriented series, but they are not interchangeable because the wheel diameters are completely different.

For restoration work, that distinction matters more than brand loyalty alone. A BMW 735i restored with its original TRX wheels should stay on the matching TRX tire size, while a car with standard inch wheels should use the inch-based fitment that matches those rims. Choosing between the two is really a question of wheel system authenticity, not simply tread style or appearance.

A BMW 735i can be driven on public roads when the tires are the correct size for the wheel, are in sound condition, and are part of a car that has been properly maintained. The listed fitments are all radial tires, including standard inch-based sizes and the metric TRX option for certain early cars. Safety depends on correct wheel-to-tire matching as much as on tread condition.

The biggest risk point on a BMW 735i is assuming that a metric TRX tire and a conventional inch-size tire can substitute for one another. They cannot. Before road use, confirm tire age, pressure, wheel condition, and any signs of vibration or impact damage so the car's high-speed touring character is supported by a correctly matched and healthy tire setup.

Before driving a BMW 735i, inspect tire pressure, sidewall condition, tread wear, and the general condition of the wheels. Make sure the tire size on the car matches the wheel system, especially on 1985 through 1987 cars that may use either conventional inch wheels or metric TRX wheels. Look for cracks, bulges, irregular wear, and anything that suggests the tire has aged out or been damaged.

On a collector BMW 735i that sits often, also pay attention to flat spotting, brake drag, and any pulling or vibration once the car begins moving. A quiet luxury sedan can mask small developing issues until they become more serious. A short pre-drive inspection is one of the simplest ways to protect the wheels, preserve ride quality, and avoid preventable roadside problems.

A BMW 735i should only be driven at speeds appropriate to the exact tire fitted, the tire's condition, and the overall mechanical state of the car. Many of these fitments reflect the BMW 735i's performance-luxury character, but age and condition matter more than the model's original capability when evaluating a collector car today. An older tire with good tread is not automatically ready for sustained high-speed use.

Treat any newly acquired BMW 735i conservatively until the tires and chassis have been fully evaluated. Gradual road testing gives you time to feel for vibration, tramlining, imbalance, or heat-related issues. Once the tire age, condition, and wheel compatibility are known, you can make a more informed decision about the kind of highway use that is appropriate for that specific car.