1985 Aston Martin Tire Fitment Guide

1985 Aston Martin vehicles use two tire sizes: 235/70R15 and 255/60R15. The 235/70R15 fits both the 1985 Aston Martin Lagonda and the 1985 Aston Martin V-8, while the 255/60R15 is used on the 1985 Aston Martin V-8 only. Both sizes mount on 15-inch wheels. Rim width guidance varies by tire, with 235/70R15 examples spanning 6.0 to 8.5 inches and 255/60R15 examples spanning 7.0 to 9.0 inches, with some products tied to a single wheel width.

That means year and make alone are not quite enough for a final choice. Lagonda owners can focus on 235/70R15, while V-8 owners should confirm whether their car is set up for the shared 235/70R15 fitment or the wider 255/60R15. If the wheels on the car are original, restored, or changed from stock, verifying actual wheel width before ordering is the most useful next step.

On a 1985 Aston Martin, 235/70R15 is a metric radial size. The 235 refers to nominal section width in millimeters, the 70 is the aspect ratio, meaning the sidewall height is 70 percent of the section width, the R identifies radial construction, and the 15 is the wheel diameter in inches. This size appears on both the Lagonda and the V-8, making it the shared fitment across the 1985 Aston Martin range.

That code matters because it tells you far more than the wheel diameter alone. A 235/70R15 carries a taller sidewall and narrower section than the 255/60R15 used on some V-8 applications, so the two sizes are not interchangeable by name even though both fit 15-inch wheels. Matching the exact size on the car is the cleanest way to preserve the intended stance and wheel-to-tire relationship.

No. The 1985 Aston Martin Lagonda uses 235/70R15, while the 1985 Aston Martin V-8 uses 235/70R15 and also appears with 255/60R15. Both are radial 15-inch sizes, but they differ in section width and profile. The V-8 therefore has a broader fitment picture than the Lagonda.

That distinction is important for buyers browsing by year and make rather than by model. A Lagonda owner can move directly into 235/70R15 choices, but a V-8 owner should identify the actual wheel-and-tire setup on the car before choosing a product. If the car has been restored, modified, or fitted with replacement wheels at some point, a quick sidewall and wheel measurement check is worthwhile.

The right choice depends first on model. The 235/70R15 is the shared fitment for both the 1985 Aston Martin Lagonda and 1985 Aston Martin V-8, while the 255/60R15 is specific to the 1985 Aston Martin V-8. Both are radial 15-inch sizes, so this is not a bias-ply-versus-radial decision; it is a question of matching the correct width and profile to the car's intended setup.

Lagonda owners should stay with 235/70R15. V-8 owners should confirm what is on the car now and whether they are preserving an existing wheel-and-tire combination or returning the car to a known fitment. The wider 255/60R15 changes the tire's proportions compared with the 235/70R15, so the best practice is to verify the wheel width and compare the current sidewall marking before moving ahead.

1985 Aston Martin tires are available with several sidewall looks depending on size. The 235/70R15 comes in blackwall, redline, and raised white letter styles, while the 255/60R15 comes in outline white letter and raised white letter styles. Since both sizes are radial and both fit 15-inch wheels, sidewall appearance can have a strong effect on the car's finished look without changing the basic construction.

For an Aston Martin of this era, blackwall generally gives the most restrained and traditional grand touring presentation. Redline and white-letter treatments push the appearance in a more period-performance direction and may suit a driver who wants a stronger visual statement. The key is to choose a sidewall style that matches the way your particular car is restored and presented, rather than treating all 1985 Aston Martin models the same.

Several brands cover 1985 Aston Martin fitments. In 235/70R15, the available names are Avon, BFGoodrich, Cooper, and Michelin. In 255/60R15, the available names are Goodyear, Cooper, and BFGoodrich. All of these are radial tires, but they differ in sidewall styling and, in some cases, speed-rating details.

That mix gives Aston Martin owners room to choose a tire that fits the car's personality as well as its size requirement. A Lagonda owner looking for a more understated luxury presentation may lean toward blackwall offerings, while a V-8 owner may prefer the stronger visual cue of white-letter performance radials. Once the size is confirmed, compare sidewall style, wheel-width compatibility, and any speed marking that matters to your use.

Rim-width needs vary by size and sometimes by individual tire. For 235/70R15 on a 1985 Aston Martin, examples span from 6.0 to 8.5 inches wide, with some tires marked for 6.0 to 8.0 and others for 6.0 to 8.5. For 255/60R15, examples span from 7.0 to 9.0 inches, while some products are tied to a single 7-inch or 8-inch wheel width.

That makes wheel measurement more important than many buyers expect, especially on a hand-built GT car that may have seen wheel changes over the years. Before choosing between two tires in the same size, compare your actual wheel width with the range or fixed width tied to the tire you want. Staying inside that match helps preserve the intended sidewall shape and keeps the tire properly supported on the wheel.

Most 1985 Aston Martin radial tires in these sizes present as tubeless, but tube status can vary by product and should be checked on the individual sidewall marking. Michelin's 235/70HR15 carries a TL marking, which identifies it as tubeless. Other products in 235/70R15 and 255/60R15 do not all use the same sidewall notation in the size description, so it is wise to confirm before final fitment.

The wheel matters just as much as the tire here. If the car still uses original or specialty wheels, confirm whether the wheel itself is intended for tubeless use and whether the valve stem, bead seat, and sealing surfaces are in suitable condition. That is especially worthwhile on a collector Aston Martin that may spend long periods parked between drives.

Both 235/70R15 and 255/60R15 for a 1985 Aston Martin fit 15-inch wheels, so they share wheel diameter compatibility. That means a Lagonda or V-8 owner is dealing with the same basic rim diameter across the year and make. Width is the key variable, since 235/70R15 commonly works in the 6.0-to-8.5-inch range while 255/60R15 commonly works in the 7.0-to-9.0-inch range.

The practical takeaway is that diameter alone does not settle the question. A V-8 owner considering both sizes should confirm the actual wheel width before assuming either tire is appropriate for the same wheel. If the car has aftermarket wheels or replacement wheels from an earlier restoration, measuring the wheel is the safest way to avoid a mismatch.

A 1985 Aston Martin should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, electric motors, furnaces, welders, and other ozone-producing equipment. Inflate the tires properly before storage and keep the car on a clean surface rather than bare earth. Because both Aston Martin sizes here are radial, they generally tolerate static storage better than older bias-ply tires, but long periods of sitting can still create flat-spotting and age-related sidewall stress.

Moving the car periodically helps distribute load and reduce the chance of a persistent flat spot. For longer storage, some owners prefer tire cradles or stands to lessen constant stress on one contact patch. When the car comes back into service, inspect each tire for sidewall cracking, tread separation signs, and pressure loss before taking the Aston on the road.

On a 1985 Aston Martin, tire age matters more than mileage for most collector use. A good rule is to begin evaluating tires closely once they are around five to seven years old and to treat roughly ten years from the DOT date code as the point where replacement deserves serious consideration, even if tread depth still looks strong. That guidance applies whether the car wears 235/70R15 or 255/60R15 radials.

Collector cars often accumulate very few miles, which can make old tires appear healthier than they really are. Heat cycles, storage conditions, and long periods of inactivity all influence the rubber's condition. If the Aston spends more time parked than driven, a calendar-based inspection and replacement mindset is usually more sensible than waiting for visible tread wear to force the decision.

Tires on a 1985 Aston Martin deserve a quick inspection before every drive and a more deliberate inspection before any extended outing. Check inflation, tread wear, sidewall cracking, cuts, bulges, and any sign that a tire is losing air between drives. Because these cars often see occasional use, the spare should also be inspected rather than forgotten in the trunk.

A more thorough inspection every season is a smart habit for a hand-built GT car of this age. Look for uneven wear that could point to alignment or suspension issues, and pay attention to valve stems and bead area condition on tubeless applications. Catching those problems early helps avoid turning a routine drive into an avoidable roadside problem.

Yes, 1985 Aston Martin tires can be suitable for highway driving when they are the correct size, in sound condition, and used within their speed-rating limits. The 235/70R15 appears with H and V ratings in some applications, which correspond to 130 mph and 149 mph respectively, while the 255/60R15 appears with an S rating in some applications, which corresponds to 112 mph. Both sizes are radial, which aligns well with modern highway use compared with older bias-ply construction.

The tire's speed symbol is only one part of the picture on a 1985 Aston Martin. Brake condition, suspension health, wheel condition, and the overall mechanical state of the car matter just as much on a long, fast drive. If your intended use includes sustained highway travel, choose a tire whose speed marking matches that use and keep the car itself equally well sorted.

Inflation pressure on a 1985 Aston Martin should be matched to the exact tire size and the vehicle's factory guidance, not borrowed from another size. Several tires in 235/70R15 carry load figures around 1,819 to 1,896 pounds at 35 psi, while 255/60R15 examples carry figures around 1,796 to 1,885 pounds at 35 psi. Those numbers describe the tire's load capacity at a stated pressure, not necessarily the pressure Aston Martin recommended for routine road use.

The best approach is to start with the original owner's manual or factory placard for the car, then compare that recommendation with the reproduction or modern tire's own rating information. If the car has moved from one size to the other over time, avoid assuming the same pressure is automatically correct. Pressure tuning should also reflect how the car is actually used, whether that means occasional touring or mostly local fair-weather driving.

Before a longer drive in a 1985 Aston Martin, inspect all four tires and the spare for pressure, age, cracking, bulges, cuts, and uneven tread wear. Confirm that the sidewall size matches the setup you intend to run, especially on a V-8 that may wear either 235/70R15 or 255/60R15. A quick visual check of the valve stems and wheel lips is also worthwhile before setting out.

Tires are only one part of the pre-trip routine on a 1980s Aston Martin. Brake feel, steering response, fluid levels, and cooling-system condition deserve equal attention on a car built for fast touring but now used as a collector vehicle. Taking ten extra minutes in the garage can do more for confidence and safety than any cosmetic detail once the trip is underway.