1974 Audi Tire Fitment Guide

1974 Audi vehicles use four sizes, but they are divided by model. The Audi 100 uses either 165R14 radial or 560-14 bias-ply tires, both on 14-inch rims. The Audi Fox uses 155R13 or 175/70R13, both radial sizes for 13-inch rims. Rim width guidance varies by size: 165R14 products span 4.0 to 6.0 inches, 560-14 spans 3.50 to 4.00 inches, 155R13 reaches 4.00 to 5.50 inches where specified, and 175/70R13 spans 4.5 to 6.0 inches.

The practical takeaway is that year and make alone are not enough for a 1974 Audi tire decision. Start by confirming whether your car is an Audi 100 or an Audi Fox, then match the tire to the wheel diameter already on the car. If you own an Audi 100, the next choice is whether you want a radial for a more modern-feeling drive or a bias-ply for a more traditional restoration look. If you own a Fox, the decision stays within radial construction but still requires choosing the correct 13-inch size for your car's intended appearance and use.

On a 1974 Audi, 560-14 is a traditional numeric bias-ply size. The 560 identifies the tire's nominal section width in the older numeric system, and the 14 indicates the wheel diameter in inches. For the 1974 Audi range, that size applies to the Audi 100 rather than the Fox. BFGoodrich offers it in Blackwall, Narrow Whitewall, and Wide Whitewall versions, all built as bias-ply tires.

That size matters because it signals an older construction style and a very different restoration direction than the Audi 100's 165R14 radial option. Buyers preserving factory-era appearance often prefer a numeric bias-ply when they want the stance and sidewall look associated with the period. Before mounting 560-14 tires, confirm that the wheels are the correct 14-inch diameter and fall within the tire's 3.50 to 4.00 inch rim-width range, since that size is much narrower in wheel fit than the radial alternative.

No. The 1974 Audi 100 and 1974 Audi Fox use different tire sizes and different wheel diameters. The Audi 100 uses 14-inch sizes, either 165R14 radial or 560-14 bias-ply, while the Audi Fox uses 13-inch radial sizes, either 155R13 or 175/70R13. None of those sizes are shared across both models.

That difference affects more than just ordering convenience. A buyer who assumes all 1974 Audi cars use the same tire can easily end up with the wrong rim diameter before even getting into construction or appearance choices. The safest approach is to identify the model first, then verify the wheel diameter on the car, then compare the sidewall marking on the existing tire. That sequence is especially important on cars that may have been restored, modified, or fitted with a replacement wheel package decades after they left the showroom.

For a 1974 Audi 100, the real difference between 165R14 and 560-14 is construction and character. The 165R14 is a radial size available from Pirelli, Michelin, and Vredestein in Blackwall form, while the 560-14 is a bias-ply size from BFGoodrich with Blackwall and whitewall options. Both fit the Audi 100's 14-inch wheel diameter, but they do not represent the same driving feel or visual period message.

Choose 560-14 when the goal is a more traditional restoration presentation, especially if period-correct sidewall styling is part of the look you want. Choose 165R14 when you want to stay with an era-appropriate metric radial format that better reflects the move toward radial construction in 1970s European cars. The best choice depends less on the badge on the fender than on how you plan to use the car: judged restoration, casual local driving, or regular road use with an eye toward modern radial behavior.

Sidewall style depends heavily on size for 1974 Audi fitments. The 165R14, 155R13, and 175/70R13 sizes are available in Blackwall form, which is the natural match for the European radial look associated with 1970s Audi sedans. The 560-14 bias-ply size for the Audi 100 adds the broadest style range, with Blackwall, Narrow Whitewall, and Wide Whitewall versions from BFGoodrich.

That matters most for Audi 100 owners deciding how original or how Americanized they want the finished appearance to be. A Blackwall radial usually looks more at home on a stock European sedan of this era, while a whitewall bias-ply creates a more stylized vintage presentation that some restorers or period-custom owners may still prefer. If authenticity matters for show judging, confirm what sidewall style is accepted in your marque community before choosing a whitewall simply because it is available in the correct 14-inch size.

1974 Audi sizes are covered by several specialist tire makers rather than a single universal brand. The 165R14 radial is available from Pirelli, Michelin, and Vredestein; the 560-14 bias-ply comes from BFGoodrich; the 155R13 radial comes from Michelin and Dunlop; and the 175/70R13 radial comes from Avon. That spread gives Audi owners a mix of European-style radial offerings and a dedicated classic bias-ply option for the Audi 100.

Brand choice should come after size and construction, not before. Once the correct size is settled, compare the available series within that size for the sidewall appearance and driving character you want. On a 1974 Audi, a Michelin, Pirelli, Vredestein, Dunlop, or Avon radial keeps the discussion in the European classic-tire world, while BFGoodrich covers the vintage numeric bias-ply path. Staying within the proper size family is more important than chasing a name alone, especially on a car where wheel diameter differs between models.

Rim width depends on the exact tire size used on your 1974 Audi. The 165R14 radial for the Audi 100 fits 4.0 to 6.0 inch rims across the available products, with Michelin spanning 4.50 to 6.00 inches and Vredestein spanning 4.0 to 5.5 inches. The 560-14 bias-ply for the Audi 100 is much narrower at 3.50 to 4.00 inches. On the Fox side, 155R13 reaches 4.00 to 5.50 inches where specified, and 175/70R13 fits 4.5 to 6.0 inch rims.

That range is why wheel measurement matters before ordering, especially on cars that may no longer wear original steel wheels. A tire can share the correct rim diameter and still be a poor match for the wheel's width. The 560-14 is the most restrictive fit in the group, so an Audi 100 converted to later radial wheels may not suit it without careful checking. Measure the wheel between the bead seats or verify the wheel specification before deciding which size family to pursue.

Inner-tube status varies by size and sometimes by product on 1974 Audi applications. Michelin's 165R14 and 155R13 products are marked TL, meaning tubeless, while other products in those same sizes do not all carry the same marking. The 560-14 bias-ply entries do not include a TL marking, and the 175/70R13 Avon product also does not carry a TL marker in the size description. That means tube use should be confirmed against the exact tire chosen and the wheel type it will be mounted on.

The wheel matters as much as the tire because an original rim's design and condition can influence whether a tubeless setup is appropriate. If you are working with older steel wheels, a restoration shop or tire specialist familiar with classic European cars can help determine whether the wheel is suitable for tubeless service or whether a tube is the safer route. Check the exact sidewall marking on the tire you choose, and inspect valve stem, rim condition, and bead seat integrity as part of the installation plan.

The two 1974 Audi 100 sizes share the same 14-inch rim diameter, so they are compatible at the diameter level. That means an original 14-inch Audi 100 wheel is in the correct basic diameter family for both 165R14 and 560-14. The remaining issue is width: 165R14 radial products span roughly 4.0 to 6.0 inch rims, while 560-14 bias-ply products are intended for 3.50 to 4.00 inch rims.

In practice, some 14-inch wheels will suit one of those sizes better than the other. A wider wheel often makes more sense for the radial, while the narrow numeric bias-ply size wants a correspondingly narrow rim. Before switching an Audi 100 from one size family to the other, measure the wheel or verify its specification rather than assuming the shared 14-inch diameter settles the question. That check is especially important on cars that have had wheels swapped during restoration or long-term ownership.

A 1974 Audi should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, heaters, welders, battery chargers, and other ozone-producing equipment. Keep the tires properly inflated, avoid parking for long periods on wet concrete or contaminated surfaces, and move the car periodically if possible. Because the 1974 Audi 100 can use bias-ply tires, storage habits matter even more there, since bias-ply construction is more prone to flat-spotting during long static periods than radial construction.

If the car will sit for months, many collectors either roll it occasionally or support it in a way that reduces prolonged stress on one contact patch while still following safe storage practice. Clean, dry tire sidewalls age better than tires exposed to dressing chemicals or constant heat cycling. For an Audi Fox on radial tires, the same principles apply, but the urgency around temporary flat spots is usually lower than with a bias-ply-equipped Audi 100. Good storage protects both appearance and ride quality.

On a 1974 Audi, tire life is usually determined by age more than mileage. Collector-car tires often accumulate very little tread wear, yet rubber still hardens over time and can develop age-related cracking long before the tread is gone. A useful rule is to begin evaluating tires closely once they reach about five to seven years of age and to treat roughly ten years as a strong point for replacement consideration, regardless of remaining tread depth. The DOT date code is the starting point for that age check.

That approach is especially important on a lightly driven Audi 100 or Fox that looks fine at a glance but may be riding on older rubber. Age replacement is not a rigid legal deadline, but it is a sound collector-car maintenance principle. If the car is driven at highway speeds, stored in heat, or shows any sidewall cracking, hardening, or vibration, shorten your timetable. A fresh inspection by a tire professional is worthwhile whenever the date code and the tire's condition start telling different stories.

Tires on a 1974 Audi should be inspected before every drive, with a more deliberate check before any longer trip. Look for sidewall cracking, tread separation, punctures, bulges, uneven wear, and pressure loss. On the Audi 100, pay extra attention if the car runs 560-14 bias-ply tires, since long storage can create temporary or persistent flat spotting. Any 1974 Audi tire setup that uses tubes or older-style valve hardware also deserves regular valve stem and air-retention checks.

Frequent inspection matters because collector vehicles can sit for weeks and then be asked to drive at sustained speed with little recent use. A quick visual walkaround catches many problems before they become roadside failures. Include the spare in your inspection routine, since it may be decades older than the road tires even if it has never touched pavement. Pressure should be checked cold, and any sudden change in steering feel or vibration on the road should be treated as a prompt to stop and inspect immediately.

For a 1974 Audi 100, radial construction was already well established in European passenger cars, which makes the 165R14 radial a very natural fit for an original-style restoration. The 560-14 bias-ply size is also available for the Audi 100, but it represents an older construction tradition and a different visual direction. That does not automatically make one wrong and the other right for every surviving car, because market differences, prior restorations, and wheel changes over the decades can influence what is currently on the vehicle.

If authenticity is the goal, start with the tire size shown on the car's period literature, placard, or surviving original paperwork if available. Then compare that to the wheel actually on the car and the sidewall style you want to present. Marque clubs and Audi specialists are the best source for market-specific confirmation, especially if your 1974 Audi 100 was delivered outside the U.S. or has a restoration history that may have introduced a later wheel or tire choice.

Yes, correct tire fitment can matter quite a bit when showing a 1974 Audi, especially in classes that reward factory-correct presentation. Judges and knowledgeable enthusiasts often notice the tire's overall size family, construction type, profile, and sidewall treatment because those details influence the car's stance and period appearance. On a 1974 Audi 100, a metric radial and a numeric bias-ply send very different historical signals. On a 1974 Audi Fox, the difference between 155R13 and 175/70R13 can also change the visual balance of the car.

For a local driver-class event, small deviations may not matter much, but concours-style judging can be far stricter. A whitewall on a car that should visually present with blackwalls, or a lower-profile tire on a stock-preservation build, can stand out immediately. If your Audi is being prepared for formal judging, confirm the expected size, construction, and sidewall appearance with the hosting club or model registrar before mounting a new set. That extra step helps avoid spending money on tires that are mechanically usable but visually incorrect for the class.

Both the Michelin XAS and Vredestein Sprint Classic are radial choices for the 1974 Audi 100 in 165R14 form, and both carry an H speed rating. The Michelin XAS is marked 165HR14 84H TL and fits 4.50 to 6.00 inch rims, while the Vredestein Sprint Classic is offered as 165HR14 84H with a 1,102-pound load figure at 51 psi and fits 4.0 to 5.5 inch rims. Both use Blackwall styling, but their wheel-fit ranges and published detail sets are not identical.

That makes the choice partly a matter of wheel width and partly a matter of the driving and visual character you want within the same size. If your Audi 100 has a narrower 14-inch wheel, the Vredestein's fit range may align more comfortably, while a wider wheel can favor the Michelin range. Since both stay within an era-correct European radial theme, the smarter comparison is not simply brand reputation but how the tire's published dimensions and your actual wheel specification work together on the car.

1974 Audi tires can be suitable for highway driving when they are the correct size, in sound condition, and used within their construction and speed-rating limits. The radial sizes offered for 1974 Audi fitments carry H ratings, which correspond to 130 mph, far beyond normal U.S. highway use. The 560-14 bias-ply option for the Audi 100 does not present a speed letter in the same way, so its safe real-world use depends more heavily on condition, inflation, and realistic expectations for an older construction type.

In everyday collector-car use, the mechanical condition of the car often becomes the limiting factor before the radial tire's speed rating does. A 1974 Audi still relies on period brakes, suspension, alignment settings, and steering components that deserve as much attention as the tires themselves. Before regular highway use, confirm that the tires are fresh enough, properly inflated, and free of cracking or flat spots. If your Audi 100 runs bias-ply tires, expect a different feel on grooved pavement and allow extra margin while getting used to them.

Inflation pressure for a 1974 Audi should start with the factory recommendation for the specific model, then be considered alongside the tire manufacturer's maximum load and pressure information where it is published. The 560-14 bias-ply for the Audi 100 carries a 906-pound rating at 30 psi. The Vredestein 165R14 carries a 1,102-pound rating at 51 psi. Those figures are load-capacity references, not universal instructions to run every 14-inch Audi tire at the same pressure.

The safest habit is to use the original owner's manual or placard as your baseline and then confirm that your chosen reproduction or specialty tire is being used within its intended pressure range. Do not transfer a pressure setting from a 560-14 bias-ply to a 165R14 radial, or from a Fox's 13-inch size to an Audi 100's 14-inch size, just because both are on 1974 Audis. Check pressure cold, revisit it after seasonal temperature swings, and fine-tune only within the tire maker's published limits.

Before a longer drive in a 1974 Audi, inspect all four road tires and the spare for cracking, cuts, bulges, punctures, uneven wear, and correct cold pressure. Confirm that the sidewall markings match the size you intend to run, and take a close look at valve stems and air retention, especially if the setup may involve tubes or older wheels. On an Audi 100 with bias-ply tires, it is also wise to note whether the car has been sitting long enough to create noticeable flat spotting at the start of the trip.

Tires are only one part of the checklist on a 1970s Audi, but they are the one part that directly connects every other mechanical system to the road. Add a quick check of the jack, lug wrench, and spare-tire condition so the car is not relying on unusable emergency equipment. During the first few miles, pay attention to vibration, pull, or unusual heat buildup after a stop. Any of those signs can point to inflation, balance, aging, or mounting issues that should be addressed before the drive becomes a long one.