1967 Humber Tire Fitment Guide

1967 Humber fitment centers on the Super Snipe, and it uses two sizes: 185R15 and 775-15. Both mount on 15-inch wheels, but they represent different tire types. The 185R15 radial fits 15-inch rims with approved widths ranging from 4.5 to 6.5 inches, depending on the specific tire. The 775-15 bias-ply also fits 15-inch rims, with product-approved widths ranging from 4.50 to 6 inches.

That means a 1967 Humber buyer usually does not need to sort between different models first, but does need to decide which size path matches the car’s intended use and wheel setup. Measuring the actual wheel width before ordering is especially important, because some 185R15 radials accept a broader wheel-width range than some 775-15 bias-ply tires.

On a 1967 Humber, 775-15 is a numeric bias-ply size. The 7.75 figure refers to the tire’s nominal section width, and the 15 refers to the wheel diameter in inches. Unlike modern metric tire codes, it does not spell out a separate aspect ratio, and the construction is bias-ply rather than radial. That makes it a format closely associated with mid-century original-style fitment.

For a Super Snipe owner, 775-15 points toward a more era-authentic tire look and feel, especially when paired with period-style sidewall treatments such as narrow whitewall, redline, or goldline. It is best treated as the traditional restoration route rather than simply a numeric equivalent to every 15-inch radial.

On a 1967 Humber, 185R15 is a metric radial size. The 185 is the nominal section width in millimeters, the R indicates radial construction, and the 15 is the wheel diameter in inches. When this older European-style radial size appears without an aspect ratio, it is conventionally understood as an 80-series profile. Some versions also carry speed markings such as H or V, which indicate approved maximum speed capability.

For a Super Snipe owner, 185R15 is the more modern-format choice of the two sizes used on the car. It keeps the 15-inch wheel diameter while moving to radial construction, so it is often the size people consider when they want a more contemporary road-going character without stepping away from a period-appropriate overall profile.

The choice depends more on construction and intended use than on model differences, because both sizes apply to the 1967 Humber Super Snipe and both fit 15-inch wheels. The 775-15 is a bias-ply tire in a traditional numeric format, while the 185R15 is a radial in an older European metric format. Sidewall style can also shape the decision, since both sizes offer period-style visual options.

A Super Snipe restored with originality in mind will usually lean toward 775-15 bias-ply, especially for period presentation and concours-style expectations. A car that sees more frequent road miles often points owners toward 185R15 radial fitment. Wheel width should be checked before making the final decision, because the approved rim-width range differs between individual products.

1967 Humber tires are available in several sidewall styles across the two sizes. The 185R15 radial appears in redline, narrow whitewall, and blackwall form. The 775-15 bias-ply appears in redline, narrow whitewall, and goldline form. That gives the Super Snipe owner a meaningful visual choice in addition to the construction choice.

For a large British saloon of this era, blackwall and narrow whitewall tend to be the most natural period-oriented directions, while redline and goldline create a more individualized appearance. The right decision depends on whether the car is being finished to a factory-like presentation, a period accessory look, or a more personalized restoration style.

Four brands cover 1967 Humber fitment across the two sizes. The 185R15 radial is available from Coker Classic and Michelin, while the 775-15 bias-ply is available from BFGoodrich and Firestone. Those brands span both reproduction-oriented collector tires and long-recognized nameplates associated with historic tire design and period styling.

Brand choice on a Super Snipe usually comes down to the size path you prefer first, then the sidewall look you want within that size. Once the construction and appearance are settled, compare the approved rim-width range and any speed or load markings on the exact tire you are considering rather than choosing by brand name alone.

1967 Humber tires fit 15-inch rims, but the approved rim width depends on the exact size and product. In 185R15 radial form, approved rim widths run from 4.5 to 6.5 inches across the available options. In 775-15 bias-ply form, approved widths run from 4.50 to 6 inches, with some tires aimed at narrower 4.50 to 5.00-inch rims and others suited to 6-inch rims.

That range is wide enough that measuring the wheel already on the car is worth the effort before committing to a tire. A Super Snipe owner moving from bias-ply to radial, or vice versa, should verify the wheel width against the exact tire’s approved range rather than assuming every 15-inch wheel works equally well with every version.

Inner-tube use varies by product on 1967 Humber fitment. The Michelin 185HR15 and 185VR15 radial options are marked TL, which identifies them as tubeless tires. The remaining products do not all carry the same explicit marking, so tube use should be confirmed on the exact tire and matched to the wheel type and condition. That is especially important on older wheels that may have been restored, repainted, or modified over time.

A tubeless marking on the tire does not automatically settle the question if the wheel itself is not suitable for tubeless service. On a collector Humber, the practical approach is to inspect the wheel carefully, confirm whether it is being used in tubeless condition, and then follow the tire maker’s guidance for that exact application.

Both tire sizes used on the 1967 Humber Super Snipe mount on 15-inch wheels, so the wheel diameter itself is compatible with either 185R15 or 775-15. That said, diameter alone does not answer the full fitment question. The approved rim-width range changes by size and by individual tire, particularly within the radial options.

An owner keeping the original wheels can often choose either size path, but the wheel should be measured and inspected first. That extra step matters because an older wheel may fall neatly inside one tire’s approved width range and sit closer to the edge of another’s, especially when moving between bias-ply and radial construction.

A 1967 Humber should be stored in a cool, dry, dark space away from direct sunlight, electric motors, welders, battery chargers, and other ozone sources that accelerate rubber aging. Keep the tires properly inflated during storage, and if the car will sit for extended periods, move it occasionally or support it in a way that reduces long-term flat spotting. Bias-ply tires are generally more prone to temporary flat spotting during static storage than radials.

That matters for a Super Snipe because it is a substantial, low-use collector sedan that may spend long stretches parked between outings. A clean floor, stable temperatures, and periodic pressure checks do as much for tire longevity as mileage management, especially when the car is driven only seasonally.

Tire life on a 1967 Humber is usually judged more by age and condition than by tread wear, because collector cars often accumulate limited mileage. A sound rule is to begin evaluating tires closely once they reach the five- to seven-year range and to treat the ten-year point as a serious replacement consideration, even if the tread still looks usable. The DOT date code and the tire’s physical condition should guide that judgment.

Super Snipe owners sometimes assume a lightly driven car can stay on older tires indefinitely, but age hardening, internal deterioration, and sidewall cracking can develop long before the tread is worn out. A tire that looks presentable at a glance may still be too old for confident road use, especially at sustained speed.

Tires on a 1967 Humber should be inspected before every drive and again before any extended outing. Check for sidewall cracking, uneven wear, embedded debris, tread separation signs, bulges, and pressure loss. Valve stems deserve attention as well, and if the wheel-and-tire setup uses tubes, the condition of the stem and the tire’s ability to hold pressure become even more important.

That quick inspection is especially valuable on a collector Humber because long parked periods can hide age-related issues that do not appear on a frequently driven modern car. A few minutes in the garage before departure can catch problems early and help prevent the kind of roadside failure that can damage both the tire and the car.

For a 1967 Humber Super Snipe, bias-ply and radial fitment sit right at the transition point in tire history, but a period-correct presentation generally starts with the understanding that bias-ply construction was the longstanding standard and radial adoption was becoming increasingly common in European touring cars by the late 1960s. The two sizes associated with the car here are 775-15 in bias-ply form and 185R15 in radial form.

That makes original-equipment research on a Super Snipe worth handling carefully, especially if the car is being restored to a specific market version or judged standard. Size, construction type, and sidewall appearance should all be checked against factory literature, period road tests, and Humber or Rootes marque specialists before finalizing a concours-oriented fitment.

Correct tire fitment matters on a 1967 Humber because judges and knowledgeable enthusiasts often notice more than overall diameter. Construction type, sidewall treatment, and whether the tire presents as a period-appropriate choice can all affect how authentic the car appears. A modern-looking radial on a car judged for strict originality, or an eye-catching sidewall treatment that does not suit the car’s original market character, can draw attention for the wrong reason.

For a Super Snipe, the safest show-oriented approach is to decide first whether the event values factory-correct restoration or period-style presentation. Club standards and marque experts are the right final authority, especially when choosing between 775-15 bias-ply authenticity cues and 185R15 radial practicality with a still-vintage appearance.

Within 185R15 radial fitment for the 1967 Humber, Michelin XVS and Coker Classic differ in sidewall presentation, speed marking, and approved wheel-width range. Coker Classic appears in 185R15 redline form with a 5.00 to 6.50-inch approved rim-width range and a load figure of 1355 pounds at 35 psi. Michelin XVS appears in narrow whitewall and blackwall forms, with 185HR15 93H TL and 185VR15 93V TL versions spanning 4.5 to 6.5-inch approved rim widths depending on the exact tire.

That comparison matters because a Super Snipe owner may be choosing not just a radial size, but also the visual character and operating envelope within that size. A redline radial creates a different period impression than a blackwall or narrow whitewall, and the H- and V-rated Michelin options add another layer for owners concerned with matching the tire to intended road speed and wheel width.

1967 Humber tires can be suitable for highway driving when they are the correct size, in good condition, and used within their construction and speed limits. The 185R15 radial options include H-rated versions approved to 130 mph and V-rated versions approved to 149 mph. The 775-15 bias-ply options shown here do not carry those same speed-letter markings, so they should be treated in line with the more conservative expectations typical of bias-ply collector tires.

On a Super Snipe, tire capability is only part of the equation. Brake condition, steering play, suspension wear, alignment, and general roadworthiness often matter more to real-world safety than the tire’s speed ceiling alone. A sound vintage car on properly maintained tires is the goal, not simply the highest speed rating available.

Inflation pressure for 1967 Humber tires should be matched to the exact tire and then cross-checked against the vehicle’s factory guidance. The 185R15 Coker Classic radial carries a load figure of 1355 pounds at 35 psi, while the 775-15 bias-ply options shown here carry 1490 pounds at 32 psi. Those figures describe the tire’s rated load at a stated pressure, not a universal pressure setting for every 1967 Humber tire.

The practical approach is to begin with the original owner’s manual or factory placard for the car’s intended operating pressure, then confirm that choice against the tire maker’s recommendations for the exact product. Pressure should never be transferred casually from one size or construction type to another, especially when switching between bias-ply and radial tires.

Before a longer drive, a 1967 Humber should have all four tires and the spare checked for pressure, visible cracking, cuts, bulges, unusual wear, and any sign of separation or impact damage. Valve stems should be examined closely, and if the setup uses tubes, the stem area and pressure retention deserve extra attention. The wheel itself should also be inspected for rust, distortion, or sealing issues.

That tire inspection should be part of a broader pre-drive check that suits a late-1960s British collector car. Fluids, cooling, brakes, steering, and lights all matter, but tire condition deserves priority because it is the car’s only contact with the road and one of the easiest areas to inspect thoroughly before departure.