1957 Lancia Aurelia Tires

The 1957 Lancia Aurelia is associated with two millimetric radial size expressions: 165-400 and 165R400. Both refer to the same general 165-width, 400mm wheel format rather than a modern inch-based rim size, so the fitment question is usually about matching the car’s existing wheel and tire notation correctly.

That matters because a 400mm wheel is not the same as a 15-inch or 16-inch wheel, even when dimensions seem close at a glance. A buyer should confirm the wheel marking, inspect the tire size already on the car, and make sure the selected tire matches the actual wheel system before comparing sidewall style or product details.

The applicable radial fitment for the 1957 Lancia Aurelia uses a 400mm rim diameter. That millimetric wheel size is part of the classic European tire system used with 165-400 and 165R400 tires, and it should not be confused with more familiar inch-diameter collector car wheels.

Rim confirmation should come before any tire purchase, especially on an older car that may have changed hands several times or seen wheel substitutions over the years. Checking the wheel stamp, existing tire size, and the wheel’s usable width helps narrow the correct Michelin option and avoids mixing millimetric tires with the wrong diameter wheel.

Yes. The covered 1957 Lancia Aurelia B24 & GT2500 sub-model grouping uses the same millimetric radial tire sizing, with 165-400 and 165R400 associated to it. That keeps fitment simple at the sub-model level and points the buyer toward wheel confirmation and tire choice rather than sorting through different size assignments.

Even with shared fitment, it is still worth checking what is actually on the car today. A restoration-minded owner may want a particular sidewall presentation, while a road-use owner may be comparing the available Michelin options by rim-width specification and appearance, so the next step is matching the tire to the current wheel setup.

Start with the correct wheel system. A 165R400 tire belongs on a 400mm rim, and the available options for the 1957 Lancia Aurelia stay within the traditional Michelin millimetric radial format. From there, the main comparison points are sidewall appearance, tire series details, and the rim-width specification attached to each product.

Selection becomes easier once the car’s goals are clear. A narrow whitewall changes the visual presentation, while a blackwall keeps a plainer look, and the usable rim-width range should match the wheel actually on the vehicle. Checking wheel width first helps prevent choosing a tire that is correct in diameter but mismatched to the wheel.

The available 165R400 products for the 1957 Lancia Aurelia include both narrow whitewall and blackwall sidewall styles. Those choices stay within the correct millimetric radial format, so the difference is primarily visual rather than a change to the underlying 400mm fitment system.

That gives Aurelia owners a useful appearance decision without leaving the proper size family. A narrow whitewall can support a more formal restoration-oriented presentation, while a blackwall keeps the look more understated. It still makes sense to compare the wheel width on the car, since sidewall style does not override the tire’s rim-width requirement.

Michelin is the brand available in 165R400 for the 1957 Lancia Aurelia. The current choices center on the Michelin X Radial family, including a narrow whitewall Michelin X Radial and a blackwall Michelin X-Stop, both within the classic millimetric radial format used by this car.

For most buyers, that means brand comparison is less important than comparing the two Michelin options by sidewall treatment, tire presentation, and wheel-width compatibility. Once the car’s 400mm wheel setup is confirmed, the choice becomes one of visual style and product specification rather than deciding among several competing brands.

A period-style approach for a 1957 Lancia Aurelia starts with the correct millimetric radial fitment, meaning 165-400 or 165R400 on the proper 400mm wheel. Staying within that classic European sizing format preserves the car’s intended stance and visual character far better than forcing a modern inch-based collector tire onto the car.

Once the fitment is right, the appearance choice comes down to details such as blackwall versus narrow whitewall. Buyers pursuing a highly exact restoration should compare that decision against period photography, marque references, and the car’s own history, since a correct-looking size does not automatically prove one sidewall treatment for every Aurelia.

On a 1957 Lancia Aurelia, tire construction and tire format are closely tied because the covered fitment stays within a classic millimetric radial presentation. That means the visual effect comes less from choosing between bias-ply and radial, and more from retaining the proper 400mm sizing language and selecting the sidewall style that suits the restoration.

A restored car can look noticeably different if the tire profile, wheel format, or sidewall presentation strays from the period theme. Keeping the correct millimetric wheel relationship is the first step, then deciding whether blackwall or narrow whitewall better complements the car’s finish, trim, and intended touring or show presentation.

Yes. Even though the 1957 Lancia Aurelia is tied to 165-400 and 165R400 millimetric radial sizing, wheel substitutions, brake changes, suspension work, or body alterations can change what fits comfortably. The most important point is that the car’s proper tire format depends on a 400mm wheel, not a near-looking inch diameter.

A modified car should be checked carefully before any tire choice is finalized. Wheel diameter, wheel width, and clearance at the fender and steering angles all matter, especially if the car has non-original wheels or altered ride height. That confirmation helps keep the selected tire compatible with the current setup rather than the car’s original layout.

Before road use, inspect the wheels for correct 400mm sizing, verify that the tire beads are seated properly, and check for even clearance around the suspension, bodywork, and steering range. It is also smart to look over valve stems, tubes where applicable, and the general condition of the wheels themselves on a collector-era car.

After the first miles, recheck inflation, look for any signs of rubbing, and confirm that the car tracks consistently. Older grand touring cars often sit for long periods, so it also helps to inspect brakes, steering components, and alignment condition. A new tire works best when the surrounding chassis and wheel hardware are equally road-ready.

165R400 tires on a collector 1957 Lancia Aurelia should be maintained with regular pressure checks, visual inspections for cracking, cuts, bulges, and air loss, and periodic review of tread condition even if the car sees limited miles. Collector cars can age tires through time and storage conditions long before tread wears out.

Good maintenance also means storing the car away from prolonged sunlight, excess heat, and ozone sources such as electric motors or battery equipment. Occasional movement helps prevent long-term flat spotting, and clean, dry wheel surfaces are worth monitoring on millimetric applications. Any unusual vibration or handling change deserves a close tire and wheel inspection.