The 1962 Morgan 4-4 Series belongs to a long-running British sports car tradition built around light weight, simple mechanical character, and direct road feel. Owners are usually balancing two priorities with this car: preserving its period presentation and choosing a tire that suits real-world driving. For this model, the key fitment decision centers on two 15-inch tire sizes, a 560-15 bias-ply and a 155R15 radial. That opens the door to traditional blackwall, narrow whitewall, and wide whitewall bias-ply choices, along with several classic-style radial options and a bias-look radial equivalent. The right selection depends on whether appearance, original-style construction, or road-use behavior matters most for your 4-4 Series.
Which Tire Size Is Right for The 1962 Morgan 4-4 Series
The 1962 Morgan 4-4 Series uses two primary tire sizes, and both mount on a 15-inch rim. The difference is mainly one of construction and sizing convention: 560-15 is a vintage numeric bias-ply size, while 155R15 is a Euro-metric radial. Since the Base model uses both sizes, the real choice is deciding whether to stay with a traditional bias-ply presentation or move to a radial fitment that still suits the car's wheel and overall setup.
155R15 is a Euro-metric radial size in which 155 identifies nominal section width in millimeters, R indicates radial construction, and 15 is the wheel diameter in inches. On the 1962 Morgan 4-4 Series, this size gives buyers a radial-format option on the correct 15-inch rim without moving into a modern low-profile look. Available choices are largely blackwall tires from Firestone, Michelin, Avon, and Vredestein across series such as F560 Radial, Michelin X, XAS, XAS-FF, CR6ZZ, Snow Classic, and Sprint Classic. It is the size to study when road-use priorities lean toward radial construction while keeping a classic sports-car presentation.
560-15 is a numeric bias-ply size where 560 represents an approximate 5.60-inch nominal section width and 15 identifies the wheel diameter in inches. This is the traditional period-style fitment for the 1962 Morgan 4-4 Series and preserves the look and construction type many restoration-minded owners want. Product choices include blackwall, narrow whitewall, and wide whitewall versions from Firestone, US Royal, and Coker Classic, along with a Pro-Trac Street Pro Front Runner option in the same size. It is the size to evaluate when maintaining vintage appearance and classic bias-ply character is the main goal.
Sub-model fitment is straightforward here, because the covered 1962 Morgan 4-4 Series configuration shares the same two 15-inch tire size paths. Checking the exact sub-model still matters so the tire decision stays focused on the correct bias-ply or radial choice rather than an assumed wheel or construction change.
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1962 Morgan 4-4 Series Base
The 1962 Morgan 4-4 Series Base uses both 155R15 radial and 560-15 bias-ply fitments on 15-inch rims. That gives the owner a clear choice between a more traditional bias-ply presentation and a classic radial format, with final selection driven by appearance goals, wheel compatibility, and intended road use.
Bias-Ply to Radial Tire Conversion for the 1962 Morgan 4-4 Series
For the original 560-15 size, two radial-equivalent options are available. 155R15 is the 80-series metric radial equivalent, while 560R15 is the bias-look radial equivalent. The first keeps a classic metric radial sizing format, and the second is aimed at buyers who want a more traditional visual presentation while moving to radial construction. A recommended rim-width range of 4 to 5 inches applies to these equivalents, so wheel width, overall dimensions, and clearance should all be checked before making the switch.
Modern Radial Equivalents
155R15
Equivalent 80-series Metric Radial (560-15)
560R15
Bias-look Radial Equivalent (560-15)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (4-5 in) and load needs match your vehicle specifications.
Check fender clearance, steering clearance, and stance before installation.
Consider suspension condition and intended road use when choosing equivalents.
Important Fitment Notes
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1962 Morgan 4-4 Series Tires for Sale
Available choices for the 1962 Morgan 4-4 Series span 560-15 bias-ply and 155R15 radial tires from Firestone, Michelin, Avon, Vredestein, US Royal, Coker Classic, and Pro-Trac. Buyers can compare classic blackwall, narrow whitewall, and wide whitewall styles across several tire series and rim-width specifications.
These FAQs focus on the 1962 Morgan 4-4 Series tire decisions that matter most: 560-15 versus 155R15, 15-inch rim fitment, bias-ply versus radial construction, available sidewall styles, and the checks worth making before road use.
Tire Size & Fitment
What tire size fits a 1962 Morgan 4-4 Series?
The 1962 Morgan 4-4 Series uses two primary tire sizes: 560-15 in bias-ply construction and 155R15 in radial construction. Both are 15-inch fitments, so the choice is not about changing wheel diameter as much as selecting the tire type and sizing convention that best suits the car and its intended use.
That means the first step is deciding whether the car should retain a traditional bias-ply look and feel or move to a classic radial format. Since the Morgan 4-4 Series Base uses both size paths, wheel width, overall tire dimensions, and available clearance should be checked before settling on one direction.
What size rim does a 1962 Morgan 4-4 Series use?
The 1962 Morgan 4-4 Series uses a 15-inch rim with both of its primary tire sizes. That applies to the 560-15 bias-ply fitment and the 155R15 radial fitment, so rim diameter stays consistent even though the tire construction and sizing system change.
A shared 15-inch diameter does not mean every wheel is automatically suitable for every available tire in those sizes. Rim width still matters, especially when comparing bias-ply and radial choices, so it is worth measuring the actual wheel on the car before selecting a replacement for driving, restoration, or a conversion to radial construction.
What does 560-15 mean on a 1962 Morgan 4-4 Series?
On a 1962 Morgan 4-4 Series, 560-15 is a vintage numeric bias-ply tire size. The 560 portion represents an approximate 5.60-inch nominal section width, and the 15 identifies the wheel diameter in inches. It is the older American-style sizing format commonly seen on period bias-ply tires.
Understanding that code helps separate it from the radial 155R15 option, which follows a metric sizing system instead. For a Morgan owner, that difference affects more than the label on the sidewall; it shapes the tire's appearance, the available sidewall treatments, and what should be verified on the wheel before choosing a replacement.
Bias-Ply & Radial Options
Is 560-15 a bias-ply or radial tire for the 1962 Morgan 4-4 Series?
For the 1962 Morgan 4-4 Series, 560-15 is a bias-ply tire size. It is the traditional numeric format associated with vintage construction, and the available products in this size are bias-ply tires rather than standard radial tires under the same primary size designation.
That makes 560-15 the natural starting point for owners who want a distinctly period-style presentation, especially when choosing among blackwall, narrow whitewall, or wide whitewall versions. Anyone considering a change to radial construction should look at the established radial equivalents separately and confirm that wheel width and vehicle clearance still make sense.
What radial tire sizes are equivalent to 560-15?
Radial equivalents for 560-15 include 155R15 and 560R15. The 155R15 option is an 80-series metric radial equivalent, while 560R15 is the bias-look radial equivalent for buyers who want a radial tire with a more traditional visual character.
Those options serve different goals, even though both are meant as radial alternatives to the original bias-ply size. A recommended rim-width range of 4 to 5 inches is associated with the equivalent fitment, so the actual wheel, the car's available clearance, and the overall tire dimensions should all be checked before treating either one as a workable conversion.
Should I use bias-ply or radial tires on a 1962 Morgan 4-4 Series?
The right choice depends on what matters most for the car. A 560-15 bias-ply keeps the Morgan 4-4 Series in a more traditional period-style construction, while a 155R15 radial follows a classic metric radial format that still works with the car's 15-inch wheel setup.
Bias-ply tires usually appeal to owners focused on vintage presentation, while radial choices are often considered for regular road use and broader product variety. The decision should also account for wheel width, the actual setup on the car, and whether preserving a classic appearance matters more than changing construction.
Choosing the Right Tire
What should I consider when choosing a 560-15 or 155R15 tire for a 1962 Morgan 4-4 Series?
Start with the correct primary size path for the car: 560-15 if the goal is a traditional bias-ply fitment, or 155R15 if a classic radial format is preferred. From there, compare construction, rim-width suitability, sidewall style, tire series, and any load information that may matter for how the car is actually used.
The strongest buying distinction on this Morgan is not simply brand name but the type of ownership goal behind the purchase. A restoration-oriented car may lean toward bias-ply appearance, while a road-driven car may lead the buyer toward radial options, provided the wheel and chassis setup are checked carefully before choosing.
What sidewall styles are available for 1962 Morgan 4-4 Series tires?
The sidewall styles available for the 1962 Morgan 4-4 Series depend on tire size. In 155R15 radial form, the available options are blackwall. In 560-15 bias-ply form, choices include blackwall, narrow whitewall, and wide whitewall, giving the car noticeably different visual presentations while staying within the correct size family.
That makes sidewall style an important appearance decision, especially on a small British sports car where the tire is visually prominent. Buyers looking for a restrained sporting look often start with blackwall, while whitewall versions can create a more formal vintage effect. The sidewall treatment should match the car's restoration direction rather than being chosen by size alone.
What brands offer tires for the 1962 Morgan 4-4 Series?
Tires for the 1962 Morgan 4-4 Series are available from Firestone, Michelin, Avon, Vredestein, US Royal, Coker Classic, and Pro-Trac. The brand mix varies by size, with 155R15 centered on radial offerings and 560-15 covering several bias-ply options in both blackwall and whitewall styles.
Brand choice should be considered alongside tire series, construction, and the visual result on the car. A Morgan owner comparing products is often deciding between a traditional bias-ply presentation and a radial-format driving setup, so the most useful comparison is how each brand's available tire matches the car's intended look and wheel specification.
Restoration & Appearance
Which tire should I choose for a period-style 1962 Morgan 4-4 Series?
For a period-style 1962 Morgan 4-4 Series, the 560-15 bias-ply is the natural place to begin. Its vintage numeric sizing and traditional construction suit the car's early-1960s character, and it is offered in blackwall, narrow whitewall, and wide whitewall forms depending on the type of presentation the owner wants.
That does not make every 560-15 automatically appropriate for every restoration goal, because sidewall treatment can change the car's visual tone significantly. When exact originality matters, compare the tire choice against marque-club guidance, period photos, or other vehicle-specific references rather than assuming any available sidewall style is historically exact.
How does tire construction affect the appearance of a restored 1962 Morgan 4-4 Series?
Tire construction changes the visual character of a restored 1962 Morgan 4-4 Series more than many owners expect. A 560-15 bias-ply keeps the car in a distinctly traditional format, while a 155R15 radial introduces a classic metric radial look that can still suit the car but reads differently from a vintage bias-ply setup.
That visual difference matters on a lightweight sports car with narrow tires and exposed body proportions. Owners trying to preserve a strongly period-style appearance often stay with bias-ply construction or consider a bias-look radial, while buyers focused less on historical presentation may be comfortable with a conventional blackwall radial alternative.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1962 Morgan 4-4 Series?
Yes, modifications can affect tire fitment on a 1962 Morgan 4-4 Series even when the tire size itself is correct. Changes such as aftermarket wheels, altered wheel width, suspension adjustments, ride-height changes, or body and fender work can all influence how a 560-15 or 155R15 tire sits on the car.
A Morgan with a changed setup should be checked for steering clearance, suspension movement, and available space around the fenders before new tires are installed. The same caution applies when converting from bias-ply to radial construction, because the wheel may still be 15 inches while other fitment details have changed over time.
What should I inspect before driving a 1962 Morgan 4-4 Series on new tires?
Before driving a 1962 Morgan 4-4 Series on new tires, inspect the wheels for correct diameter and width, verify that the tires seat properly, and confirm there is no contact at full steering lock or through suspension travel. It is also worth checking inflation, valve stems, and whether the car tracks evenly once the tires are mounted.
Older collector cars deserve an extra walk-around before road use. Look for sidewall damage, cuts, visible bulges, unusual air loss, or anything that suggests the wheel or suspension condition needs attention. A short local test drive is a sensible way to confirm that the car behaves properly before heading onto faster roads.
How should 560-15 or 155R15 tires on a collector 1962 Morgan 4-4 Series be maintained?
Tires on a collector 1962 Morgan 4-4 Series should be maintained with regular pressure checks, routine visual inspections, and careful storage habits. Whether the car wears 560-15 bias-ply tires or 155R15 radials, the owner should watch for cracking, tread wear, sidewall damage, and any sign that the tire is aging out before it is wearing out.
Collector cars often spend more time parked than driven, so storage conditions matter as much as mileage. Keeping the car away from prolonged sunlight, heat, moisture, and ozone sources can help protect the tires, and periodic inspection remains important even when the Morgan sees only occasional fair-weather road use.