1967 Morgan Plus 4 Tires

The 1967 Morgan Plus 4 uses four primary tire sizes across its covered configurations: 155R15 and 560-15 for the Base model, plus 165R15 and 590-15 for the Plus model. The radial sizes are 155R15 and 165R15, while 560-15 and 590-15 are numeric bias-ply sizes.

That means the first fitment step is identifying the exact sub-model rather than choosing by year and make alone. Both versions use 15-inch wheels, but the tire width and construction differ, so the correct selection should be matched to the car's Base or Plus designation and then checked against the actual wheel setup on the vehicle.

All covered tire sizes for the 1967 Morgan Plus 4 use a 15-inch rim diameter. That applies to both radial sizes, 155R15 and 165R15, as well as the bias-ply sizes 560-15 and 590-15, so wheel diameter stays consistent across the model range.

Even with the same 15-inch diameter, wheel width still matters when selecting among available tires or considering a radial equivalent. It is worth confirming the actual wheel on the car before purchase, especially if the Morgan has replacement wheels, older restored rims, or a mix of parts from an earlier service history.

The 1967 Morgan Plus 4 has more than one tire size because fitment varies by sub-model and by tire construction. The Base model uses the smaller 155R15 radial or 560-15 bias-ply, while the Plus model uses the larger 165R15 radial or 590-15 bias-ply combination.

That split changes the buying decision from simply finding any 15-inch tire to matching the car's exact version first. Once the sub-model is confirmed, the next question becomes whether the goal is a period-style bias-ply presentation, a radial driving setup, or a carefully checked radial-equivalent alternative for one of the bias-ply sizes.

560-15 is a bias-ply tire size for the 1967 Morgan Plus 4 Base. It belongs to the older numeric sizing system, where the first number refers to nominal section width in inches and the final number indicates the 15-inch rim diameter.

A buyer choosing 560-15 is usually preserving the car's traditional tire construction and vintage look rather than moving to a modern radial format. Radial alternatives do exist for this size, but construction changes should still be checked against wheel width, the car's actual wheel condition, and clearance at the front suspension and fenders.

For 560-15, radial equivalents include 155R15 as an 80-series metric radial and 560R15 as a bias-look radial. For 590-15, the available radial equivalents are 165R15 as an 80-series metric radial, P165/75R15 as a 75-series P-metric radial, and P175/70R15 as a 70-series P-metric radial.

These sizes provide alternative sizing conventions rather than automatic one-for-one substitutions. Both bias-ply sizes carry a recommended rim-width range of 4 to 5 inches for equivalent consideration, and any conversion should be checked for wheel compatibility, overall tire envelope, and steering or body clearance before the car goes back on the road.

Either construction can be appropriate on a 1967 Morgan Plus 4, depending on the sub-model and the goal for the car. The covered fitments include both period-style bias-ply sizes and radial sizes, so the decision is usually between preserving original-style character or selecting a radial presentation within the correct sub-model range.

Bias-ply tires generally appeal to owners focused on traditional appearance, while radial choices often attract drivers who want a more modern construction in a narrow classic size. The right answer depends on the exact Base or Plus setup, the wheel dimensions already on the car, and whether the Morgan is being judged for authenticity, driven regularly, or used mainly for occasional touring.

Start with the exact sub-model, because the 1967 Morgan Plus 4 Base and Plus versions do not use the same size pairing. After that, narrow the choice by construction type, since each sub-model has a radial option and a bias-ply option in a corresponding 15-inch size.

Once size and construction are settled, compare the details that shape the car's final presentation and compatibility. Sidewall treatment, brand, tire series, rim-width range, and load figures can all matter, especially on a light British sports car where tire appearance is highly visible and wheel dimensions should be checked carefully before changing from an existing setup.

Sidewall style depends on the tire size chosen for the 1967 Morgan Plus 4. Blackwall is available across all four primary sizes, while narrow whitewall and wide whitewall choices appear in several 560-15 and 165R15 offerings, and wide whitewall is also available in 590-15.

That gives the car owner a real appearance decision, especially because a Morgan's tires are visually prominent against its narrow body and exposed fenders. Blackwall usually keeps the look understated and sporting, while whitewall options move the car toward a more formal vintage presentation, so the right choice depends on whether the car is being restored, shown, or driven in a more casual period style.

Brands available across the 1967 Morgan Plus 4 tire sizes include Firestone, Michelin, Avon, Vredestein, BFGoodrich, US Royal, American Classic, Coker Classic, and Pro-Trac. The specific brand choices change by size, with the broadest variety appearing in the radial sizes and a smaller but still useful range in the bias-ply sizes.

Brand choice should be considered alongside size, construction, and sidewall treatment rather than in isolation. A buyer comparing options for a Base or Plus model may find that one brand offers the desired blackwall sporting look while another provides a whitewall style or a different tire series, so the practical comparison is about the whole package, not just the name on the sidewall.

A period-style 1967 Morgan Plus 4 usually starts with the correct sub-model size and then leans toward the matching bias-ply construction: 560-15 for the Base or 590-15 for the Plus. Those sizes preserve the vintage sizing system and the traditional visual character most buyers associate with a mid-1960s British sports car.

The final choice still depends on how closely the car is being restored and how it will be used. For a historically minded presentation, a bias-ply tire is often the natural starting point, while owners pursuing exact originality should also check marque references, period photography, or restoration documentation before choosing a specific brand or whitewall treatment.

Tire construction changes more than road feel on a restored 1967 Morgan Plus 4; it also changes the visual character of the car. Bias-ply sizes such as 560-15 and 590-15 maintain a traditional period-style look, while radial sizes like 155R15 and 165R15 present the same 15-inch wheel diameter through a more modern sizing convention.

That difference matters on a Morgan because the tires are easy to see and strongly influence the car's stance. A restorer aiming for an authentic vintage impression may prefer the bias-ply route, while a driver-restoration can still look appropriate on narrow classic radials, especially when sidewall style and wheel proportions are chosen with care.

Yes, modifications can affect tire fitment on a 1967 Morgan Plus 4 even when the wheel diameter remains 15 inches. Changes such as aftermarket wheels, altered wheel width, suspension work, ride-height adjustments, or body repairs can influence how a 155R15, 560-15, 165R15, or 590-15 tire sits and clears the car.

That is especially important when considering a move between bias-ply and radial construction or when using an equivalent radial size. Before mounting new tires, measure the actual wheel, inspect clearance at full steering lock, and check the space around fenders and suspension components so the chosen size suits the car as it exists today, not just as it left the factory era.

Before driving a 1967 Morgan Plus 4 on new tires, inspect the wheels for correct diameter, width, and condition, then verify that each tire is mounted in the right size for the car's Base or Plus sub-model. It also makes sense to confirm inflation, valve condition, and basic clearance with the steering turned from lock to lock.

A short visual check after installation can prevent problems once the car is moving. Look for sidewall contact, uneven seating on the rim, rubbing marks, or any sign that the tire sits too close to suspension or bodywork, and recheck pressure after the first drive so the Morgan is ready for regular road use rather than just garage display.

Tires on a collector 1967 Morgan Plus 4 should be inspected regularly for pressure loss, cracking, bulges, cuts, and tread wear, even if the car is driven only occasionally. Low-mileage collector cars often age their tires through time and storage conditions rather than heavy road use, so visual condition matters as much as mileage.

Good storage habits help preserve both bias-ply and radial tires on a lightly used Morgan. Keep the car away from prolonged sunlight, excess heat, moisture, and ozone sources, and check the tires before every meaningful drive rather than assuming they are ready because the car has been parked indoors. A classic sports car benefits from routine inspection long before obvious wear appears.