Bristol 410 Tires

Bristol 410 uses two tire sizes in the 1968 model year: 195R15 and 670-15. The 195R15 size is a radial-format size for a 15-inch wheel, while 670-15 is a numeric bias-ply size that also fits a 15-inch wheel. That means the wheel diameter remains the same, but the construction style and sizing language are different.

The practical step is to identify which format is actually on the car now and whether the chassis, steering feel, and restoration goal point you toward radial or bias-ply use. A Bristol 410 that has been restored, updated, or driven regularly may not still be on the same type of tire it carried years ago, so inspect the sidewall markings before matching a replacement.

On a Bristol 410, 670-15 is a traditional numeric bias-ply size. The 670 refers to a nominal section width of about 6.70 inches, and the 15 is the wheel diameter in inches. In the available Bristol 410 offerings for this size, the products are bias-ply tires built for 15-inch rims.

That matters because a numeric size like 670-15 should be read as an older sizing convention rather than a modern metric equivalent. If your Bristol 410 currently wears a numeric bias-ply tire, stay focused on matching the rim diameter, the construction type, and the general stance you want from the car instead of trying to compare the number directly to a modern passenger-car size.

The 1968 Bristol 410 shows two sizes because the split is between construction and size format, not between different wheel diameters. One listing uses 195R15, which is a radial format, and the other uses 670-15, which is a traditional bias-ply numeric format. Both are built around 15-inch wheels.

That means the year alone is not enough to choose the right tire. You need to look at the tires currently fitted, the wheels on the car, and the restoration direction you are following. A car prepared for touring may be set up differently from one restored to a more period-correct bias-ply appearance, even though both fall under the same 1968 Bristol 410 listing.

Bristol 410 fitments in 670-15 use bias-ply tires, and for that size in this group a tube is required. The 195R15 radial-format listing does not carry the same automatic tube statement here because the tube requirement depends on the specific tire and wheel arrangement rather than the size code alone. The important distinction is that the numeric bias-ply option should be treated as a tube-type fitment.

Before finalizing a Bristol 410 tire choice, inspect the wheel construction as closely as the tire size. Collector cars are often restored or modified over time, and wheels may have been refinished, replaced, or reused from earlier work. Matching the tire to the wheel correctly is just as important as selecting the correct size code on the sidewall.

The best way to confirm the correct size for a 1968 Bristol 410 is to start with the tire size actually mounted on the car and compare it with the two listed fitments: 195R15 and 670-15. Both use a 15-inch wheel, but one is a radial format and the other is a bias-ply numeric format. That difference is more important than the shared wheel diameter.

Once you know which format the car is carrying, compare that choice against the car's intended use and restoration standard. If the car has been in long-term ownership or has passed through several restorations, check workshop notes, old invoices, and any period documentation with the car. That extra step often resolves whether the current setup reflects deliberate choice or a later substitution.

Bristol 410 tires in the available 670-15 products come in several sidewall styles, including blackwall, narrow whitewall, and wide whitewall. Those variations appear across multiple brands and series, giving the car owner a choice between understated period appearance and more pronounced whitewall presentation. The sidewall style changes the visual character of the car even when the nominal tire size stays the same.

For a Bristol 410, sidewall selection usually comes down to the look you want the car to present rather than a simple fitment issue. A blackwall generally suits the reserved grand-touring personality many owners prefer, while whitewalls can move the appearance in a more formal or period-personalized direction. Use photos from the car's earlier life, period brochures, or marque-club references if visual authenticity matters.

Bristol 410 tires in the available listings come from Firestone, US Royal, Coker Classic, Universal Vintage Tire, BFGoodrich, Avon, Goodyear, and STA. Most of the current offerings shown here are in the 670-15 bias-ply size, with a mix of blackwall and whitewall presentations depending on brand and series. That gives Bristol 410 owners a broad spread of period-style options rather than a single-source choice.

Brand selection should follow the overall goal for the car. Some owners prioritize a particular sidewall look, some care most about a specific vintage-style tread family, and others want to match an established restoration theme. Once the size and construction style are settled, brand becomes a useful secondary filter rather than the first decision to make.

Bristol 410 tire offerings in 670-15 include several series names, including Firestone Classic Bias Ply, US Royal Classic Bias Ply, Coker Classic Bias Ply, Universal Classic Bias Ply, Silvertown Classic Bias Ply, Excelsior Bias Ply, Turbospeed Mk4, Super Cushion, Custom Super Cushion, Super Cushion Deluxe, and Super Transport. Most of those series are classic bias-ply passenger-car designs, while Super Transport reflects a truck-oriented family. The series names mainly separate brand identity, tread family, and intended style within the same 15-inch numeric size category.

For a Bristol 410 owner, the useful takeaway is that not every 670-15 serves the same aesthetic or usage goal even when the size matches. A blackwall touring-style presentation, a wide-whitewall period look, and a more utility-oriented casing all create a different result on the car. Narrow your choice by first deciding whether the car is a preservation piece, a concours-style restoration, or a regularly exercised road car.

A Bristol 410 should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, and long periods of one-position loading. Clean the tires with mild soap and water only, and avoid dressings that leave heavy gloss or contain aggressive solvents. Proper storage matters on collector cars because the tires often age from time and environment more than from mileage.

If the Bristol 410 will sit for extended periods, move it slightly from time to time or support it in a way that reduces flat-spotting stress. Keep inflation appropriate for storage and inspect the sidewalls before the car goes back into service. A car that looks carefully housed can still have tires that have aged internally if it has spent years stationary.

Tires on a Bristol 410 should be inspected regularly even if the car covers very little mileage. Look for sidewall cracking, tread separation, impact damage, uneven wear, air loss, and signs that the tire is no longer sitting evenly on the rim. Collector-car use tends to hide age-related problems because the tires may still show ample tread.

A sensible routine is to inspect the Bristol 410 before every drive and to carry out a more careful check at the start of each driving season. If the car uses bias-ply tires, pay close attention to how it has been parked and whether any vibration appears once it is moving. Changes in steering feel or ride quality are often the first hint that a closer inspection is needed.

Bristol 410 tires should be replaced when age, cracking, hardening, deformation, or structural concerns appear, even if the tread still looks deep. Low annual mileage does not preserve a tire indefinitely, especially on a collector car that may spend long periods parked. Condition and age matter more than tread depth alone.

That principle is especially important if a Bristol 410 has spent years in static display, seasonal storage, or intermittent road use. Any tire with questionable age history deserves a careful professional evaluation before the car is driven at speed. Replacing an old-looking-but-unworn tire is often part of responsible recommissioning rather than a sign that the old tire has failed in ordinary service.

Bristol 410 appears here with two period-relevant size paths for 1968: 195R15 and 670-15. The available products attached to the numeric size are bias-ply offerings from several classic series, which shows that more than one period-style approach exists within the Bristol 410 fitment picture. There is not a single brand-specific original-equipment answer built into these listings.

For an authenticity-focused Bristol 410 restoration, the right next step is to compare the car with original paperwork, period photographs, and Bristol marque references. That helps separate what was factory-fitted, what may have been dealer-supplied, and what could have been added during later ownership. Authenticity on an exclusive British GT often turns on those details rather than on size alone.

Correct tire fitment can absolutely affect how a Bristol 410 is viewed in restoration circles, especially because the car sits in a specialist, low-production category where details carry extra weight. Size, construction type, sidewall style, and overall stance all influence whether the car looks convincingly right for its era. Even small deviations can stand out on a hand-built grand tourer.

The practical effect depends on the goal. A touring-minded Bristol 410 may justify a different choice than a car prepared for formal judging, but either way the tire should look consistent with the rest of the restoration. Marque clubs, period road tests, and surviving unrestored examples are usually the best references when the owner wants the car judged on authenticity rather than simply on presentation.

Bristol 410 tires in the available 670-15 range are offered in blackwall, narrow whitewall, and wide whitewall forms. All three are legitimate period-style presentations within the available product set, but they create notably different visual results on the car. A blackwall look is generally the most restrained, while whitewalls produce a more formal and more visibly period-styled finish.

The correct choice for a Bristol 410 restoration depends on the exact appearance you are trying to recreate. If the car is being returned to a sober grand-touring look, blackwalls often make the most sense visually. If the goal is to reflect a car that wore whitewalls in period or in early ownership, compare old photographs and restoration records before deciding on narrow or wide whitewall treatment.

A Bristol 410 can be driven on public roads when the tires fitted are the correct size, in sound condition, properly mounted, and suitable for the way the car will be used. The key issue is not just whether the tire fits the 15-inch wheel, but whether the construction type matches the setup and expectations for the car. A well-sorted collector car still depends on tires that are age-sound and correctly chosen.

Before putting a Bristol 410 into regular road use, inspect the tires as part of the broader recommissioning of the chassis, brakes, steering, and suspension. Cars that have been parked for long periods can look presentable while hiding age-related problems in the tire carcass. Public-road use should start only after the whole system has been checked, not just the tread depth.

Before driving a Bristol 410, check tire pressure, visible sidewall condition, tread condition, valve stems, wheel security, and any signs of rubbing or uneven wear. Confirm that the tires match across the axle in both size and construction type, especially if the car uses the 1968 fitment choices of 195R15 or 670-15. Those checks are basic, but they matter more on a low-use collector car than many owners expect.

A short, careful first drive is wise after any long storage period or tire change. Pay attention to pull, shake, braking stability, and steering response, because a Bristol 410 often reveals tire-related issues through feel before anything looks visibly wrong. If the car behaves differently from what you expect, stop and inspect rather than driving through the problem.

Appropriate speed for a Bristol 410 on original-style tires should be governed by the age, condition, construction type, and overall mechanical state of the car rather than by the car's performance reputation alone. A classic grand tourer may be capable of much more than an old or period-style tire should be asked to deliver. Caution matters especially when the car is running bias-ply tires or has unknown tire age.

The safest approach is to build speed gradually only after the Bristol 410 has proven stable, smooth, and predictable in lower-speed use. If the car wears older bias-ply tires, treat highway use conservatively and make sure the rest of the running gear is equally well sorted. Collector-car driving is always best when the tire's condition sets the pace, not the badge on the bonnet.