The 1955 Lancia Appia came from a period when Lancia was known for compact engineering, refined road manners, and a distinctly Italian approach to small-displacement motoring. For owners of this early Appia, tire choice often comes down to whether the car is being kept in a traditional bias-ply presentation or driven on a more road-oriented radial setup. This model is associated with both 560-15 bias-ply and 155R15 radial sizing on 15-inch rims. That opens the door to blackwall, narrow whitewall, and wide whitewall bias-ply options, along with several period-appropriate radial choices. The right selection depends on how closely you want to preserve original character versus everyday driving feel and maintenance priorities.
Which Tire Size Is Right for The 1955 Lancia Appia
The 1955 Lancia Appia is associated with two tire sizes, both built for 15-inch rims: 560-15 in bias-ply construction and 155R15 in radial construction. Since the same Appia Base fitment can be approached either way, the real decision is whether to stay with the traditional bias-ply size and appearance or move to a radial format while still keeping dimensions appropriate to the car.
155R15 is a Euro-metric radial size in which 155 refers to nominal section width in millimeters, R identifies radial construction, and 15 is the rim diameter in inches. On a 1955 Lancia Appia, this size represents the radial-fitment path and is commonly associated with classic European tire sizing. Available choices are centered on blackwall designs from Firestone, Michelin, Avon, and Vredestein across series such as F560 Radial, Michelin X, XAS, XAS-FF, Snow Classic, Sprint Classic, and CR6ZZ. It is the size to evaluate when road-use drivability and a traditional European radial format are higher priorities than a bias-ply presentation.
560-15 is a numeric bias-ply size in which 560 represents a nominal section width of about 5.60 inches and 15 identifies the wheel diameter. For the 1955 Lancia Appia, this is the traditional bias-ply fitment route and keeps the car in a more vintage construction type. Product choices include blackwall, narrow whitewall, and wide whitewall versions from Firestone, US Royal, and Coker Classic, plus a Pro-Trac Front Runner option in the same size. This size makes the most sense when period-style appearance, traditional construction, and classic sidewall treatment are central to the car's overall presentation.
Sub-model fitment is straightforward here because the covered 1955 Lancia Appia Base uses the same two tire-size paths already associated with the model. Checking the sub-model still matters so the tire choice stays focused on whether the car is being kept in bias-ply form or set up around a radial alternative.
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1955 Lancia Appia Base
The 1955 Lancia Appia Base is associated with both 560-15 bias-ply and 155R15 radial sizing on 15-inch rims. That gives the owner a clear choice between a more traditional period-style bias-ply look and a classic radial format that should still be checked against the car's actual wheels and running clearance.
Bias-Ply to Radial Tire Conversion for the 1955 Lancia Appia
For the 1955 Lancia Appia, the original 560-15 bias-ply size has two radial-equivalent options. 155R15 is the equivalent 80-series metric radial, while 560R15 is the bias-look radial equivalent. The first follows a Euro-metric radial format, and the second is intended to retain a more traditional visual presentation while using radial construction. A recommended rim-width range of 4 to 5 inches applies to these alternatives, so wheel width, overall dimensions, and clearance should be checked before changing from the primary bias-ply size.
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 1955 Lancia Appia Tires for Sale
Available 1955 Lancia Appia tires span both 560-15 bias-ply and 155R15 radial sizing, with brands including Firestone, Michelin, Avon, Vredestein, US Royal, Coker Classic, and Pro-Trac. The main comparisons are construction type, tire series, and sidewall treatment, especially among blackwall, narrow whitewall, and wide whitewall bias-ply options.
Common 1955 Lancia Appia tire questions usually center on choosing between 560-15 bias-ply and 155R15 radial sizing, understanding radial equivalents, and matching sidewall style, wheel fitment, and road-use plans to the car.
Tire Size & Fitment
What tire size fits a 1955 Lancia Appia?
The 1955 Lancia Appia is associated with two tire sizes: 560-15 in bias-ply construction and 155R15 in radial construction. Both use a 15-inch rim, so the main fitment question is not wheel diameter but which construction and sizing format best matches the car's intended use and appearance.
A 560-15 choice keeps the Appia in a traditional numeric bias-ply format, while 155R15 follows a classic Euro-metric radial format. Before choosing between them, confirm the actual wheel width on the car and inspect for any previous wheel or suspension changes that could affect clearance or the way the tire sits on the rim.
What size rim does a 1955 Lancia Appia use?
The tire sizes associated with the 1955 Lancia Appia are built for 15-inch rims. That applies to both the 560-15 bias-ply fitment and the 155R15 radial fitment, so the wheel diameter remains consistent even though the tire constructions and size formats differ.
Rim diameter is only part of the picture on a vintage car. Wheel width also matters, especially if the Appia has replacement wheels, older repaired rims, or a non-original setup. Measuring the wheel before ordering helps avoid problems with tire profile, sidewall shape, and clearance once the car is back on the road.
Does the 1955 Lancia Appia Base use the same tire size?
The 1955 Lancia Appia Base is associated with the same two size paths used on this model: 560-15 in bias-ply form and 155R15 in radial form. That means the sub-model itself does not introduce a different rim diameter or a separate fitment pattern within this coverage.
The practical decision is choosing which path suits the car. A bias-ply setup leans toward a more traditional presentation, while the radial size follows a classic European fitment style. It is still worth checking the actual wheels on the car, since older collector vehicles are often changed over time without obvious exterior clues.
Bias-Ply & Radial Options
Is 560-15 a bias-ply or radial tire for the 1955 Lancia Appia?
On the 1955 Lancia Appia, 560-15 is the bias-ply tire size. It uses a vintage numeric sizing format, and it is the construction most closely tied to a traditional mid-1950s tire presentation, especially when paired with blackwall, narrow whitewall, or wide whitewall sidewall styles.
That matters because a 560-15 bias-ply choice affects both the look of the car and the way the tire category is approached during replacement. Owners considering a change to radial construction should compare wheel width, overall fit on the rim, and clearance at full steering lock rather than assuming every 15-inch alternative behaves the same way.
What radial tire sizes are equivalent to 560-15?
Radial equivalents for 560-15 include 155R15 and 560R15. The 155R15 size is the equivalent 80-series metric radial, while 560R15 is the bias-look radial equivalent. Those two options give the 1955 Lancia Appia owner a choice between a conventional classic radial format and a radial that preserves a more traditional visual character.
The recommended rim-width range for these equivalents is 4 to 5 inches, which makes wheel verification especially important before conversion. Even when the rim diameter matches, the tire should still be checked against the car's actual wheel width, body clearance, and steering clearance so the change works with the Appia's current setup.
Should I use bias-ply or radial tires on a 1955 Lancia Appia?
Either direction can make sense on a 1955 Lancia Appia because both 560-15 bias-ply and 155R15 radial sizing are associated with the model. The better choice depends on whether the car is being kept close to a traditional period-style presentation or prepared for more regular road use with a classic radial format.
A bias-ply selection keeps the vintage sizing system and opens the door to multiple whitewall and blackwall appearances. A radial choice shifts the decision toward classic European-style road tires. Matching the tire to the car's actual wheel width, suspension condition, and intended use is more important than treating one construction as automatically right for every Appia.
Choosing the Right Tire
What should I consider when choosing a 560-15 tire for a 1955 Lancia Appia?
A 560-15 choice for a 1955 Lancia Appia should start with the correct construction and the appearance you want the car to carry. This size is available in bias-ply form from Firestone, US Royal, and Coker Classic, with blackwall, narrow whitewall, and wide whitewall treatments that can change the car's overall presentation dramatically.
Beyond sidewall appearance, compare rim-width suitability and product character. Some 560-15 options are built around traditional touring use, while the Pro-Trac Front Runner reflects a more specialized performance-oriented approach in the same size. The best match depends on whether the Appia is being restored visually, displayed, or prepared for actual driving on vintage-style tires.
What sidewall styles are available for 1955 Lancia Appia tires?
The 1955 Lancia Appia has sidewall variety concentrated in the 560-15 bias-ply size. Blackwall, narrow whitewall, and wide whitewall options are available there, while the 155R15 radial offerings are blackwall. That means the biggest appearance decision comes with the bias-ply path rather than the radial path.
Choosing among those sidewalls depends on the kind of period-style look you want the car to project. A blackwall keeps the presentation restrained, while whitewalls create a stronger vintage visual statement. Since sidewall style changes the look more than the fitment, the first step is still confirming the correct size and construction before narrowing the appearance details.
What brands offer tires for the 1955 Lancia Appia?
Tire choices for the 1955 Lancia Appia include Firestone, Michelin, Avon, Vredestein, US Royal, Coker Classic, and Pro-Trac. Brand variety is split across the two fitment paths, with the radial 155R15 size leaning toward classic European-style offerings and the 560-15 bias-ply size covering several traditional American-brand and vintage-style options.
Brand alone should not decide the purchase. It is more useful to compare each tire by size, construction, sidewall treatment, and intended role on the car. On an Appia, a Michelin or Vredestein radial answers a different need than a Firestone or US Royal bias-ply whitewall, even when the wheel diameter remains the same.
Restoration & Appearance
Which tire should I choose for a period-style 1955 Lancia Appia?
For a period-style 1955 Lancia Appia, the 560-15 bias-ply size is the natural starting point because it keeps the car in a traditional numeric vintage format. That size is available in blackwall, narrow whitewall, and wide whitewall versions, giving the owner flexibility in how formal, understated, or visually accented the finished car appears.
The exact sidewall treatment should match the restoration goal rather than a blanket assumption about originality. If historical accuracy matters at a high level, compare the tire choice against marque references, period photos, and vehicle-specific documentation. A radial can still be appropriate for road use, but it changes the car's visual and construction character.
How does tire construction affect the appearance of a restored 1955 Lancia Appia?
Tire construction changes more than ride behavior on a restored 1955 Lancia Appia; it also changes the visual character of the car. A 560-15 bias-ply tire maintains a distinctly vintage profile and opens the door to whitewall styling, while a 155R15 radial moves the presentation toward a classic European road-tire look in blackwall form.
That difference becomes noticeable even when both choices stay on 15-inch rims. Owners restoring for traditional appearance often begin with the bias-ply size, while drivers prioritizing regular use may accept the visual shift that comes with radial construction. The right answer depends on whether the Appia is being judged for presentation, driven often, or balanced between both goals.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1955 Lancia Appia?
Yes, modifications can affect tire fitment on a 1955 Lancia Appia even when the tire size itself is correct. Changes such as aftermarket wheels, altered wheel width, suspension work, ride-height changes, or body repairs around the wheel openings can all influence how either 560-15 or 155R15 tires sit and clear the car.
That is why an older car should be measured in its current condition rather than judged only by catalog size. Checking wheel width, inner and outer clearance, and steering movement helps catch issues before mounting. On a compact vintage chassis like the Appia, small changes in wheel or suspension setup can make a noticeable difference.
What should I inspect before driving a 1955 Lancia Appia on new tires?
Before driving a 1955 Lancia Appia on new tires, inspect the wheels, valve stems, and overall condition of the suspension and steering components. The tires themselves should be checked for proper seating, correct pressure, and clearance at full steering movement, especially if the car has not worn the same size or construction type recently.
A collector car also benefits from a careful first road test at moderate speed. Listen for rubbing, note any pull or vibration, and recheck air pressure after the initial drive. Tire choice and mounting are only part of the equation; aged bushings, worn alignment settings, or damaged rims can affect how the Appia behaves once the new tires are installed.
How should 560-15 or 155R15 tires on a collector 1955 Lancia Appia be maintained?
Tires on a collector 1955 Lancia Appia should be maintained with regular pressure checks, periodic visual inspection, and careful storage habits. Whether the car is on 560-15 bias-ply tires or 155R15 radials, look for sidewall cracking, cuts, bulges, uneven wear, and gradual air loss, especially if the car spends long periods parked.
Storage conditions matter as much as mileage on an older vehicle. Keeping the Appia away from prolonged sunlight, heat, moisture, and ozone sources helps preserve tire condition over time. A car that is driven infrequently should still have its tires inspected before road use, since age-related deterioration can develop even when tread wear looks minimal.