1972 Fiat Tire Fitment Guide

1972 Fiat vehicles use five sizes across three models: 155R13, 560-13, 165R13, 600-13, and 145R13. The 124 uses 155R13, 560-13, 165R13, and 600-13; the 128 uses 145R13 and 155R13; and the 850 uses 155R13 and 560-13. All of them mount on 13-inch wheels. Rim-width coverage varies by size, with examples including 155R13 at 4.00 to 5.50 inches, 560-13 at 3.50 to 4.50 inches depending on brand, 165R13 at 4.50 to 6.00 inches, 600-13 at 4.00 to 4.50 inches, and 145R13 at 4.00 to 5.00 inches where that range is published.

That makes model identification the first step, especially for a 124, which spans both radial and bias-ply sizes. Once the model is confirmed, compare the wheel’s actual width to the approved range for the specific tire you want to run. A shared 13-inch diameter does not automatically mean every 13-inch Fiat wheel is equally suitable for every size.

On a 1972 Fiat, 560-13 is a numeric bias-ply size. The 5.60 figure is the nominal section width in inches, and the 13 is the wheel diameter in inches. This size appears on the Fiat 124 and Fiat 850, not on the full 1972 Fiat lineup. Available versions come from BFGoodrich and Firestone, with narrow whitewall and wide whitewall choices and load ratings reaching 850 pounds at 30 psi on products that publish load data.

For a buyer, 560-13 usually signals a more traditional presentation than the metric radial options used elsewhere in the range. It also brings a narrower rim-width window than the larger radial choices, so wheel measurement matters before making a final selection. If your goal is a restoration-oriented look on a 124 or 850, this is one of the key sizes to compare.

No, 1972 Fiat models do not all use the same tire size. The 155R13 is shared by the 124, 128, and 850, but the 145R13 is specific to the 128, the 165R13 and 600-13 are specific to the 124, and the 560-13 is used on the 124 and 850. That spread reflects the different roles of Fiat’s small-car lineup at the time, even though every one of these sizes fits a 13-inch wheel.

The practical takeaway is simple: a buyer should not stop at year and make when researching a 1972 Fiat. A 128 owner deciding between 145R13 and 155R13 faces a different question than a 124 owner comparing 165R13 with 600-13. Matching the tire to the exact model keeps the search focused and avoids choosing a size that belongs to a related Fiat but not your own car.

For a 1972 Fiat, the choice between 155R13 and 560-13 only applies to models that use both sizes, which here means the Fiat 124 and Fiat 850. The 155R13 is a radial blackwall size shared across the full 1972 Fiat range, while the 560-13 is a bias-ply size offered with narrow or wide whitewall styling. That makes the difference more about construction character and appearance than wheel diameter, since both are 13-inch fitments.

Owners aiming for an earlier showroom or restoration look often lean toward the bias-ply 560-13 because of its traditional casing design and whitewall options. Owners who expect a more familiar later-era driving feel often prefer the radial 155R13. Either way, confirm that your wheel width matches the intended size before treating the tire choice as settled.

1972 Fiat tires span both blackwall and whitewall treatments, depending on size. The radial sizes 145R13, 155R13, and 165R13 are available in blackwall form. The bias-ply sizes 560-13 and 600-13 bring the visual variety, with narrow whitewall and wide whitewall versions. That split closely follows period expectations, since small European cars of the era were commonly seen with blackwall radials, while reproduction bias-ply tires often serve restoration and vintage-style presentation goals.

Sidewall style matters most when the car’s appearance is part of the project, whether that means a stock-looking sedan, a carefully restored Spider, or a show-oriented compact. A whitewall can change the personality of a 1972 Fiat dramatically, but it is not equally appropriate for every build. Choose the sidewall style after you settle the correct size and construction, not before.

1972 Fiat tire coverage comes from Michelin, Dunlop, BFGoodrich, and Firestone. Michelin and Dunlop cover the radial side of the range in 155R13 and 165R13, Michelin and Firestone appear in 145R13, and BFGoodrich plus Firestone cover the bias-ply 560-13 while BFGoodrich covers 600-13. Those brand groupings matter because they also shape the available sidewall styles, rim-width ranges, and in some cases published load information.

A useful way to compare brands on a 1972 Fiat is by starting with your exact size, then looking at construction and appearance. A buyer researching a radial 128 fitment will be comparing a different brand mix than someone restoring a bias-ply 850. Once you narrow the size correctly, the brand decision becomes much easier and more relevant to the car you actually own.

Rim-width requirements for 1972 Fiat tires depend on the size. The 155R13 fits rims from 4.00 to 5.50 inches, 560-13 fits 3.50 to 4.00 inches in some versions and 4.00 to 4.50 inches in others, 165R13 fits 4.50 to 6.00 inches, 600-13 fits 4.00 to 4.50 inches, and 145R13 fits 4.00 to 5.00 inches where a rim-width range is published. All of these tires mount on 13-inch rims, but the approved width window changes significantly from one size to another.

That means wheel diameter alone is not enough to confirm fitment on a 1972 Fiat. A 13-inch wheel that works well with a 145R13 may not be the ideal match for a 165R13, and a narrow original wheel may suit one bias-ply product better than another. Measuring the wheel before choosing the tire is one of the simplest ways to avoid an avoidable mismatch.

Inner-tube status on 1972 Fiat tires depends on the exact product and size. Michelin versions of 145R13, 155R13, and 165R13 are marked TL, which indicates tubeless construction. Other radial entries in those same sizes do not always carry a visible tube marking in the size description, so tube status varies by product rather than staying uniform across the entire radial range. The bias-ply 560-13 and 600-13 products shown here do not carry TT or TL markings in the size field.

The key is to match the tire’s construction and sidewall marking to the wheel you plan to use. Original wheels, wheel condition, and restoration goals can all affect whether a tube is appropriate, even when a tire itself is tubeless. If you are working with unrestored factory wheels, confirm the wheel’s condition and consult the tire manufacturer’s guidance before final installation.

Original 1972 Fiat wheels can often be used with more than one of these tire sizes because every size in the range mounts on a 13-inch rim. That said, wheel width remains the deciding factor. The approved width ranges run from as narrow as 3.50 inches on some 560-13 applications up to 6.00 inches on 165R13, so the same diameter does not make every wheel equally suitable for every tire.

This matters most on a 124, where several different sizes are in play, and on cars that may no longer wear their original wheels. If the wheel width falls near the edge of a tire’s approved range, a different size may be the better choice even though the bead seat diameter matches. Confirm the actual wheel before assuming cross-compatibility.

A 1972 Fiat should be stored in a cool, dry space away from direct sunlight, electric motors, battery chargers, welders, and other ozone-producing sources that accelerate sidewall aging. Keep the tires properly inflated during storage, and if the car will sit for long periods, move it occasionally or support it in a way that reduces prolonged loading in one spot. Bias-ply tires are more prone to temporary flat-spotting during static storage than radials, so that difference is worth remembering if your Fiat stays parked for months at a time.

Good storage habits matter as much as tread depth on collector cars because most 1972 Fiats are driven intermittently rather than daily. Tire damage from age, sunlight, or long static loading can develop quietly even when the car still looks presentable. A little prevention during the off-season preserves both appearance and road manners when driving weather returns.

On a 1972 Fiat, tire life is usually governed more by age than by mileage. A sensible collector-car rule is to begin evaluating tires closely once they are about five to seven years old and to treat the ten-year mark as a serious replacement point, even if tread remains. The DOT date code on the tire helps establish age, and sidewall condition often tells the real story on a lightly used vintage car.

That guideline applies whether the car wears radial 145R13, 155R13, or 165R13 tires or bias-ply 560-13 or 600-13 tires. A low-mile garage-kept Fiat can still age its tires out before it wears them out. If the car’s service history is uncertain, checking age is one of the first maintenance steps worth taking before any meaningful road use.

Tires on a 1972 Fiat should be inspected before every drive and again before any longer outing. Look for sidewall cracking, cuts, bulges, uneven wear, and signs of pressure loss, and check that each tire is holding air consistently. If your Fiat uses a tube-type setup or older wheel hardware, include the valve stems and any tube-related components in that inspection routine rather than focusing only on the tread surface.

Frequent inspection matters because an older car can spend weeks sitting between drives, and storage-related issues can appear without warning. Catching a crack, a weathered valve stem, or an early separation in the garage is far better than discovering it on the road. A few careful minutes before driving can prevent a ruined outing and protect hard-to-replace wheels and bodywork.

The 1972 Fiat 124 sits in a transitional era when radial tires were already well established on European passenger cars, but bias-ply sizes still remain part of the broader fitment picture for the year and make. Within the 124 range, both radial sizes such as 155R13 and 165R13 and bias-ply sizes such as 560-13 and 600-13 appear. That means original-equipment style can vary with body style, market, and how the car was delivered, rather than reducing to one universal answer for every 1972 Fiat 124.

For an authenticity-minded restoration, the safest approach is to start with your exact 124 variant and compare it against factory literature, surviving original cars, and Fiat marque-club knowledge. Construction type, tire size, and sidewall appearance all matter in that conversation. A car restored for driving can reasonably follow a different path than one prepared for period-correct judging.

Correct tire fitment does matter when showing a 1972 Fiat, especially if the event emphasizes originality. Judges and knowledgeable enthusiasts often notice whether the size suits the model, whether the construction type matches the car’s era and market expectations, and whether the sidewall treatment looks appropriate. A blackwall radial and a wide-white bias-ply can both be fine tires, but they communicate very different things on a small Italian car from 1972.

That does not mean every show uses the same standard. A local cruise-in may reward presentation and stance, while a marque-focused event may care more about period-correct size, construction, and sidewall details. If points matter, confirm the expectations before the car is finished rather than after the tires are already mounted and the look is set.

For a 1972 Fiat, Michelin XAS-FF and Dunlop SP Sport Aquajet overlap in the radial 155R13 and 165R13 sizes, and both appear in blackwall form. In 155R13, both weigh 20 pounds, while the Michelin version is marked 155HR13 78H TL and the Dunlop appears as 155R13 78H with a published max load of 937 pounds. In 165R13, Michelin versions are marked 165HR13 82H TL and fit 4.50 to 6.00-inch rims, while the Dunlop appears as 165R13 82H with a published max load of 1,047 pounds.

The practical difference comes down to the exact specifications you want to prioritize within the same nominal size, including tube marking, published load figure, and the tire series itself. Because both brands cover the same basic radial fitment territory on a 1972 Fiat, this is less about changing the car’s category and more about selecting the version that best aligns with your wheel, intended use, and brand preference.

1972 Fiat tires can be suitable for highway driving when the size, condition, inflation, and construction match the car and its intended use. The radial sizes here include H-rated examples, which carry a 130 mph speed ceiling, well beyond normal U.S. highway use. The bias-ply sizes do not show modern speed-letter markings in the same way, so they should be approached with the expectations appropriate to vintage construction. On a 1972 Fiat, the car’s own brakes, suspension condition, alignment, and age-related mechanical health are usually more relevant to real-world safety than the radial speed ceiling itself.

Highway confidence comes from the whole package, not just the tire. Fresh, properly mounted radials on a sorted 124 or 128 can feel very different from aged bias-ply tires on a car that has been sitting. Before planning sustained-speed driving, confirm the tires are sound and make sure the rest of the chassis is equally ready for the trip.

Inflation pressure on 1972 Fiat tires should follow the vehicle’s factory recommendation first, then be cross-checked against the tire’s own maximum load and pressure marking where one is published. The 560-13 products show 850 pounds at 30 psi, the 600-13 products show 1,010 pounds at 32 psi, and one 145R13 radial shows 825 pounds at 44 psi. Those figures are load-and-maximum-pressure references for the individual tire, not a universal inflation target for every 1972 Fiat model and size.

That distinction matters because a 124, 128, and 850 do not automatically want the same operating pressure even if they share a tire diameter. Start with the factory guidance for your exact model, then use the tire maker’s sidewall information and application guidance to stay within the proper range. Never transfer a pressure figure from one size to another just because both fit a 13-inch wheel.

Before a longer drive in a 1972 Fiat, inspect each tire for cracks, cuts, bulges, exposed cords, uneven wear, and any sign that the tread or sidewall is aging out. Check inflation cold, make sure the spare is usable, and confirm that valve stems are sound; if the car uses a tube-type setup, give extra attention to any slow leaks or wheel condition that could affect air retention. A quick look at tread depth alone is not enough on a collector car.

A longer trip is also the right time to think beyond the tires. Wheel fasteners, brakes, steering play, and suspension condition all deserve attention on a 1972 Fiat that may see occasional use rather than daily driving. The goal is to treat the tires as one critical part of an overall pre-drive inspection, not as an isolated checklist item.