1962 Riley 4/68 & 4/72 Tires

The 1962 Riley 4/68 & 4/72 uses two recognized tire sizes: 5.90-14 in a bias-ply format and 165R14 in a radial format. Both sizes are associated with the car on a 14-inch rim, so the fitment question is tied more to construction choice and existing wheel setup than to separate rim diameters.

The practical step is to inspect the tires and wheels currently on the car before selecting a replacement. A Riley kept in a more restoration-oriented configuration may stay with 5.90-14 bias-ply sizing, while a car already set up for radial use may continue with 165R14. Wheel condition, width, and clearance should be checked before changing constructions.

The tire fitments associated with the 1962 Riley 4/68 & 4/72 use a 14-inch rim diameter. That applies to both the 5.90-14 bias-ply size and the 165R14 radial size, so the key wheel dimension remains consistent even though the tire sizing systems and construction types differ.

Rim diameter alone does not settle the whole fitment question. It is still worth confirming the actual wheel width on the car, especially if the Riley has been updated over the years or has replacement wheels. A 14-inch wheel can accept different tire types, but construction changes should still be reviewed against wheel suitability and vehicle clearance.

On a 1962 Riley 4/68 & 4/72, 5.90-14 is a numeric bias-ply size. The 5.90 figure is the nominal section width in inches, and the 14 identifies the rim diameter. It is an older sizing format that reflects the bias-ply tire conventions commonly seen on mid-century British cars.

That older size format matters because it points to a different construction and presentation than a modern-looking metric radial. Buyers considering 5.90-14 usually do so for period-style fitment, but the wheel condition, bead area, and overall setup should still be inspected carefully. Collector cars often sit for long periods, so tire age and wheel integrity are just as important as size.

For the 1962 Riley 4/68 & 4/72, 5.90-14 is a bias-ply tire size. It uses the older numeric sizing format associated with vintage bias-ply construction, making it the more traditional choice for owners who want an earlier-style tire presentation on the car's 14-inch wheels.

That matters because the decision is not only about dimensions, but also about how the car is set up and how it is meant to be used. A Riley already running radial tires may be better served by staying with the radial-type size on the car, while a restoration-minded owner may prefer to retain the bias-ply format after checking wheel suitability and overall condition.

A 1962 Riley 4/68 & 4/72 can be approached either way within its recognized fitments: 5.90-14 for bias-ply construction and 165R14 for radial construction. The right direction depends on whether the car is being kept in a period-style presentation or driven with a preference for the characteristics of a classic radial format.

Choosing between them starts with the car in front of you. A Riley that already has radial-capable wheels and has been driven that way may continue with 165R14, while a preservation-oriented car may stay with 5.90-14. Changing construction is a good time to confirm wheel width, wheel condition, and available clearance rather than assuming the same setup suits both equally.

Before moving a 1962 Riley 4/68 & 4/72 from 5.90-14 bias-ply tires to 165R14 radials, start by confirming the 14-inch wheel dimensions and the condition of the wheels themselves. The car should also be checked for suspension wear, steering play, and any prior modifications that could influence how a different tire construction sits and runs.

A conversion should be treated as a fitment review, not just a size change. Tire-to-fender and steering clearance deserve attention, especially on an older saloon that may have seen replacement wheels or chassis work over time. Matching the tire to the intended use of the car matters too, whether the goal is regular driving, show presentation, or a blend of both.

Start with the car's actual setup. A 1962 Riley 4/68 & 4/72 may be fitted with a 5.90-14 bias-ply tire or a 165R14 radial, both on 14-inch rims, so the first decision is whether the car is staying with its current construction or moving in a different direction.

After size and construction are settled, compare the details that affect use and presentation. For radial choices, look at tire series, stated rim-width compatibility where available, load information, and overall appearance. For a more period-style outcome, bias-ply sizing may be the focus. Cars with replacement wheels or long-stored chassis components deserve a closer fitment check before final selection.

The available 165R14 radial products for the 1962 Riley 4/68 & 4/72 are blackwall tires. That gives the radial side of the selection a clean, understated European appearance that suits many British saloons of the period without introducing whitewall or raised-letter styling into the choice.

Sidewall style matters because it changes the visual character of the car even when the size remains correct. A blackwall radial keeps the look restrained and closer to the presentation many owners want on a 1960s Riley. Appearance should still be balanced with construction choice, since a bias-ply tire and a radial tire can alter the overall look beyond sidewall treatment alone.

For the 165R14 radial fitment used on a 1962 Riley 4/68 & 4/72, available brands include Pirelli, Michelin, and Vredestein. Those options appear in distinct tire series such as Cinturato CA67, Michelin XAS, and Sprint Classic, giving the buyer several European-style radial directions within the same basic size.

Brand choice is most useful when it helps narrow the tire's character and specifications rather than turning into a ranking exercise. Compare the exact size marking, sidewall treatment, rim-width information where stated, and other product details that matter to the way the Riley will be used. The best match is the one that suits the car's setup, intended appearance, and driving routine.

For a period-style 1962 Riley 4/68 & 4/72, the 5.90-14 bias-ply size is the natural place to start because it reflects an earlier tire format and construction style. It supports the kind of traditional visual presentation many owners want when the goal is to keep the car looking close to its original-era character.

That said, period-style and exact originality are not automatically the same thing. Owners pursuing highly detailed restoration work should compare the car against marque references, period photos, or other authoritative documentation before settling on a brand or presentation. If the Riley is driven regularly, the appearance goal should also be weighed against the car's wheel setup and intended road use.

Tire construction changes more than the way a restored 1962 Riley 4/68 & 4/72 drives; it also changes how the car looks. A 5.90-14 bias-ply tire carries an earlier sizing language and a more traditional visual impression, while a 165R14 radial gives the car a later, European radial-style presentation.

That difference can be important on a saloon with subtle body lines and relatively small wheel openings, where the tire contributes strongly to the finished stance. Buyers who care about restoration appearance should choose construction first, then compare sidewall presentation and series details within that direction. Matching the tire to the car's intended era feel usually produces a more convincing result than size alone.

Yes. Modifications can affect tire fitment on a 1962 Riley 4/68 & 4/72 even when the car still uses a recognized 14-inch tire size. Changes such as aftermarket wheels, altered wheel width, suspension work, ride-height changes, or body repairs can all influence how either a 5.90-14 bias-ply or 165R14 radial sits in the wheel opening.

That is why it helps to inspect the actual car instead of relying only on nominal size. Steering clearance, fender clearance, and wheel condition deserve attention before fitting new tires, especially on an older vehicle that may have had decades of maintenance and parts changes. A close visual check during full lock and normal suspension travel can prevent unpleasant surprises.

Before driving a 1962 Riley 4/68 & 4/72 on new tires, inspect the wheels for corrosion, damage, and proper bead-seat condition, then verify that the tire size and construction match the car's setup. It is also wise to look over suspension and steering components, since worn bushings, joints, or alignment issues can undermine the benefit of replacing the tires.

New tires deserve a full vehicle check rather than a quick installation. Confirm inflation, examine clearance at the fenders and steering arms, and make sure the spare, jack, and basic roadside equipment are still suitable for the wheel and tire arrangement on the car. A cautious first drive helps reveal rubbing, pull, vibration, or other issues before longer use.

Tires on a collector 1962 Riley 4/68 & 4/72 should be inspected regularly for pressure loss, sidewall cracking, bulges, cuts, and uneven tread wear, even if the car covers only limited mileage. Long periods of storage can age tires quietly, so condition matters at least as much as accumulated miles on an older British saloon.

Proper storage also helps preserve the tires between drives. Keeping the car away from prolonged sunlight, heat, moisture, and ozone sources can slow deterioration, and moving the car occasionally helps avoid long-term flat spotting. Before any extended outing, recheck pressure and give each tire a close visual inspection, since collector vehicles often spend more time parked than in active service.