1959 Fiat 1200 Tires

The 1959 Fiat 1200 uses two primary tire sizes: 155R14 in radial construction and 520-14 in bias-ply construction. Both sizes are associated with this exact model year and both use a 14-inch rim, so the fitment question is less about wheel diameter and more about choosing the construction and appearance that suit the car.

That means selection should start with the wheel actually on the car and the type of driving or restoration goal you have in mind. A car kept close to period style may lean toward 520-14 bias-ply, while a radial-equipped setup points toward 155R14. Any change between the two should be checked against wheel width, body clearance, and the vehicle’s present condition.

The tire sizes used on the 1959 Fiat 1200 are built for a 14-inch rim. That applies to both the 155R14 radial fitment and the 520-14 bias-ply fitment, so the wheel diameter remains consistent even though the sizing systems and constructions are different.

Rim diameter is only the first checkpoint, especially on an older Fiat that may have had wheel changes over the years. Actual wheel width still matters, particularly when comparing radial and bias-ply options. Before choosing a tire, confirm that the wheel on the car is truly a 14-inch rim and that its width suits the size and construction you want to run.

Yes. The 1959 Fiat 1200 Gran Luce uses the same two tire sizes associated with the model core: 155R14 radial and 520-14 bias-ply. That means Gran Luce owners are working with the same basic fitment decision as other covered 1959 Fiat 1200 applications.

The practical choice is not between different sub-model-only sizes, but between two distinct tire types. A 520-14 bias-ply keeps a more traditional look, while 155R14 keeps the car in a classic Euro-metric radial format. Since many collector cars have seen wheel or suspension changes, it is still smart to verify the actual setup before committing to one construction or the other.

520-14 is the bias-ply tire size used on the 1959 Fiat 1200. It is a vintage numeric bias-ply format, and in this application it appears in Premium Sport narrow whitewall choices that emphasize a traditional visual presentation rather than a modern radial-style look.

Choosing 520-14 usually means the appearance of the car is a major priority, especially on a restoration-oriented Fiat. Bias-ply and radial tires are built differently, so the switch between 520-14 and 155R14 should not be treated casually. Check the wheel width, the overall condition of the steering and suspension, and the way the car is meant to be driven before changing constructions.

Either can be appropriate for a 1959 Fiat 1200 because both 520-14 bias-ply and 155R14 radial fitments are used on this model. The decision usually comes down to what matters more on your car: a more traditional period-style appearance with bias-ply tires or a classic Euro-metric radial format with blackwall radial options.

That choice is best made after looking at the car as a whole. A restoration-focused Fiat may suit the bias-ply look, while a driver-oriented car may lead you toward the radial size. Construction changes can affect how the car sits and responds, so confirm wheel width, clearance, and the condition of the suspension before moving from one type to the other.

A move from 520-14 bias-ply to 155R14 radial starts with confirming that the car is on the correct 14-inch wheels and that the wheel width is suitable for the radial tire you want to use. It also helps to inspect the present tire-to-body and tire-to-suspension clearances before treating the radial size as an acceptable alternative for your particular setup.

Older collector cars can differ from one example to the next, especially after wheel, spring, or ride-height changes. A radial conversion should also prompt a close look at steering components, alignment condition, and general suspension wear. That extra check helps you avoid choosing a tire size that works in theory but creates problems once the car is back on the road.

Start with the two correct size paths for the 1959 Fiat 1200: 520-14 bias-ply or 155R14 radial. From there, compare the kind of use the car will see, the look you want, and the wheel dimensions on the car. The decision is as much about construction and presentation as it is about simply matching the rim diameter.

A car built around period style may call for the narrower visual character of the 520-14 bias-ply, while a car running radial construction belongs in the 155R14 group. It also helps to compare sidewall style, tire series, rim-width range where stated, and load figures where given. Those details shape the final choice once the correct size family is settled.

The sidewall choices for the 1959 Fiat 1200 break along construction lines. The 155R14 radial options are available as blackwalls, while the 520-14 bias-ply options appear with narrow whitewall styling. That gives the car two very different visual directions even before looking deeper into brand or tire series.

Sidewall choice matters because it changes the car’s presentation almost as much as wheel design does on a small late-1950s Fiat. A blackwall radial keeps the look understated and European, while a narrow whitewall bias-ply adds a stronger vintage accent. Once the appearance direction is clear, confirm that the matching tire size and construction still suit the wheel and intended use.

The 1959 Fiat 1200 has tire options from Michelin, Firestone, and Premium Sport. Michelin and Firestone cover the 155R14 radial fitment with blackwall offerings, while Premium Sport covers the 520-14 bias-ply fitment with narrow whitewall styles in the Premium Sport Lowrider series.

Brand choice here is tied closely to size and construction, so the first step is not picking a name but deciding whether the car should stay with bias-ply or move into radial fitment. After that, compare the available series, sidewall treatment, rim-width information where stated, and any load figures that accompany the specific tire under consideration.

For a period-style 1959 Fiat 1200, the 520-14 bias-ply size is the natural starting point because it preserves the vintage sizing format and is available with narrow whitewall styling. That makes it especially relevant for owners who want the car’s stance and sidewall presentation to feel closer to the late-1950s character of the vehicle.

Appearance goals still need to be balanced against how the car will be used. A restoration-oriented driver may still choose to compare 155R14 radial options, but the visual result will be different. If exact originality matters, use marque-specific historical references and vehicle documentation to confirm details beyond size and construction before settling on a final tire style.

Tire construction changes the look of a restored 1959 Fiat 1200 in obvious ways because the car can be set up with either 520-14 bias-ply or 155R14 radial tires. The bias-ply option keeps a more traditional vintage presentation, especially with narrow whitewall styling, while the radial choices in 155R14 come as blackwalls with a more restrained European look.

That visual difference can shape the car’s character from the curb even before the engine is started. A restoration built around classic presentation may lean toward the bias-ply side, while a driver-focused restoration may accept the radial look more readily. The best result comes from matching the tire’s appearance to the wheel, ride height, and overall finish of the car.

Yes. Modifications can affect tire fitment on a 1959 Fiat 1200 even when the tire size itself is correct. Changes such as aftermarket wheels, altered wheel width, suspension work, ride-height changes, or body repairs can all influence how either 520-14 bias-ply or 155R14 radial tires sit in the wheel opening and clear nearby components.

That matters most on older cars that may no longer match their earlier wheel and suspension setup. A tire that belongs on the model can still create issues if the car has a different wheel width or altered stance. Before driving, turn the steering through its range and confirm clearance at the fender, suspension, and inner body areas under real load.

Before driving a 1959 Fiat 1200 on new tires, inspect the wheels for correct diameter and condition, confirm proper air pressure, and make sure the tires seat and clear properly at the front and rear. It is also wise to look over the valve stems, check lug security, and verify that there is no rubbing during steering movement.

A short road test should be treated as a final check rather than the first inspection. Watch for vibration, pull, unusual noise, or signs that the tires contact the body or suspension under turning and braking. On a collector Fiat, it also pays to look at steering and suspension wear, since fresh tires can reveal problems that old tires had been masking.

Tires on a collector 1959 Fiat 1200 should be maintained with regular pressure checks, visual inspections, and careful storage habits. Look for cracking, cuts, bulges, irregular wear, and slow air loss, especially on a car that spends long periods parked. Both 520-14 bias-ply and 155R14 radial tires benefit from being kept clean and protected from harsh storage conditions.

Low annual mileage does not eliminate tire aging, so condition matters as much as tread depth on a vintage Fiat. Cars stored for extended periods should be kept away from prolonged sunlight, excessive heat, moisture, and ozone sources. A close inspection before each driving season helps catch age-related issues early, even when the tires still appear to have plenty of tread left.