1962 Borgward Tire Fitment Guide

1962 Borgward fitment centers on the Isabella, and that model uses four sizes: 165R13, 590-13, 175R13, and 640-13. All four mount on 13-inch rims. Approved rim-width information is available for 165R13 at 4.50 to 6.00 inches, for 590-13 at 3.50 to 4.00 inches, and for 640-13 at 4.00 to 4.50 inches.

That means the first fitment question is not wheel diameter, since all four sizes share 13-inch rims. The real question is whether your Isabella is being kept closer to an original early-1960s presentation with a numeric bias-ply tire or updated to a radial size with a more modern casing design. Check the wheel width on the car before choosing among them, especially if the car has changed wheels over the years.

On a 1962 Borgward, 590-13 is a numeric bias-ply size. In that older sizing system, the first number is the nominal section-width designation used in the period, and the final number is the wheel diameter in inches. It is not read the same way as a modern metric radial size such as 165R13.

For an Isabella owner, that matters because 590-13 points you toward a traditional bias-ply construction and a distinctly vintage look and feel. It is especially relevant if the car is being restored with factory-era visual cues in mind, including whitewall treatment. Before changing from 590-13 to another 13-inch size, compare the wheel's actual width and the visual stance you want on the finished car.

On a 1962 Borgward, 165R13 is a euro-metric radial size. The 165 refers to a nominal section width of 165 millimeters, the R identifies radial construction, and the 13 is the wheel diameter in inches. When the aspect ratio is not written in this format, it conventionally indicates an 80-series radial profile.

That makes 165R13 much easier for a modern buyer to interpret than an older numeric code, but it still needs to be matched to the wheel correctly. For the Isabella, 165R13 works on 13-inch rims and has an approved rim-width range of 4.50 to 6.00 inches in the available products. It is a good starting point if your Borgward is driven on today's roads and you prefer radial construction.

For a 1962 Borgward Isabella, 165R13 and 590-13 both fit 13-inch wheels, but they represent different tire eras and driving character. The 165R13 is a radial size offered in Blackwall form, while 590-13 is a numeric bias-ply size available as a Wide Whitewall. Radial and bias-ply construction change the feel of the car more than the wheel diameter does here.

Choose 590-13 if the priority is an unmistakably early-1960s appearance and a restoration-oriented presentation. Choose 165R13 if the car is driven more regularly and you want a later-style radial casing on the same basic wheel diameter. The smartest approach is to decide first whether authenticity or later road manners matter more to your Isabella, then verify the wheel width before committing.

1962 Borgward tires are available in two distinct sidewall looks across the Isabella sizes: Blackwall in 165R13 radial form and Wide Whitewall in 590-13 and 640-13 bias-ply form. That gives the car either a more understated European radial appearance or a stronger period custom-and-classic whitewall presentation, depending on the size you choose.

For a German compact such as the Isabella, sidewall style has a major effect on the finished look. A Blackwall radial tends to suit drivers who want a cleaner, more restrained roadgoing appearance, while a Wide Whitewall bias-ply tire leans harder into period restoration character. If showing is part of the plan, confirm what sidewall treatment is considered appropriate by your club, judge, or marque specialist before final selection.

1962 Borgward coverage includes Michelin and Dunlop in 165R13 radial form, plus BFGoodrich in 590-13 and 640-13 bias-ply form. Michelin offers both XAS and XAS-FF versions in 165R13, Dunlop offers the SP Sport Aquajet in the same size, and BFGoodrich covers the classic numeric sizes with whitewall bias-ply options.

That brand mix gives Isabella owners a useful split between European-style radial choices and American-market classic bias-ply offerings. If your priority is preserving the car's continental personality on the road, the radial brands will usually be the first place to look. If the car is being restored with visual authenticity in mind, BFGoodrich's numeric whitewall sizes align more closely with a period-style presentation.

For a 1962 Borgward in 165R13, both Michelin XAS and Michelin XAS-FF are Blackwall radial tires in size 165HR13 82H TL, and both fit 13-inch rims with an approved width range of 4.50 to 6.00 inches. The most obvious recorded difference between the two is weight: the XAS is 9 pounds, while the XAS-FF is 20 pounds.

Because the size, sidewall style, speed rating, and tubeless marking align so closely, the practical comparison comes down to the specific series you prefer and any construction nuances tied to that series. For an Isabella owner, either remains within the same fitment family, so the better move is to confirm the exact product's sidewall markings and intended character rather than assuming every 165R13 radial behaves identically.

Rim-width requirements on a 1962 Borgward depend on the tire size. The available 165R13 radial products fit rims from 4.50 to 6.00 inches wide. The 590-13 bias-ply fits 3.50 to 4.00 inches, and the 640-13 bias-ply fits 4.00 to 4.50 inches.

That spread is why wheel width matters even though every Isabella size here uses a 13-inch diameter. If your Borgward still has original wheels, measure them before moving from a narrow numeric bias-ply size to a metric radial or a wider bias-ply option. Width compatibility is the key checkpoint that keeps the tire's shape, bead seating, and overall fitment aligned with the wheel.

Tube status varies by size and by product on a 1962 Borgward. The Michelin 165HR13 options are marked TL, indicating tubeless construction. Across 165R13 as a whole, tube status varies by product because not every version carries the same marking, and the bias-ply 590-13 and 640-13 products shown here do not carry a TL or TT notation in the size description.

For an Isabella owner, that means inner-tube decisions should be tied to the exact tire and wheel combination rather than assumed from the size alone. Wheel design, rim condition, and valve-stem setup all play a role, especially on older steel wheels. Check the sidewall marking on the specific tire you plan to run and match it to the wheel's condition before installation.

Original 1962 Borgward Isabella wheels can share the same 13-inch diameter requirement across 165R13, 590-13, 175R13, and 640-13. That means the wheel diameter itself does not force a change between these sizes. The limiting factor is wheel width, because the approved rim-width ranges differ substantially between the narrow numeric bias-ply sizes and the metric radial options.

In practical terms, some original wheels may suit one or two of these sizes better than all four. A wheel that works properly with 590-13 may be too narrow for a 165R13 radial, while a wheel chosen for a radial may not be ideal for the narrower bias-ply. Measure the wheel, inspect its condition, and match that width to the intended tire before assuming every 13-inch option is interchangeable.

A 1962 Borgward should be stored in a cool, dry, dark space away from direct sunlight, electric motors, welders, battery chargers, and other ozone sources that accelerate sidewall aging. Keep the tires clean and properly inflated, and move the car periodically if it sits for long stretches. Bias-ply tires are generally more prone to temporary flat-spotting during storage than radials.

For an Isabella that spends much of its life parked, those small storage habits matter as much as mileage. If the car will be idle for a season, many collectors either roll it occasionally or support it in a way that reduces long-term carcass stress. The goal is to preserve both the tire's structure and the ride quality you expect when the car returns to the road.

Tires on a 1962 Borgward should be judged more by age than by miles, because collector cars such as the Isabella often see limited use. A sensible rule is to begin regular age-based evaluation around five to seven years and to treat ten years as a serious replacement point, regardless of tread depth. The DOT date code on the tire is the starting point for that timeline.

An older-looking tire can still have deep tread, but age hardening, internal degradation, and sidewall cracking may make it a poor choice for continued road use. That is especially relevant on a vintage car that may only come out for occasional drives or shows. If the age is creeping up, factor replacement into your maintenance planning before the next touring season rather than after a problem appears.

Tires on a 1962 Borgward deserve a quick inspection before every drive and a more careful look before any longer outing. Check for sidewall cracking, cuts, bulges, uneven wear, and pressure loss, and make sure the tread is free of embedded debris. On older collector cars, it is also wise to watch valve stems closely and pay extra attention if your final tire-and-wheel setup uses tubes.

That routine is especially important on an Isabella because the car's low annual mileage can hide aging issues between drives. A tire can look acceptable while still developing age-related problems that only become obvious under closer inspection. Frequent checks take only a few minutes and are one of the easiest ways to avoid turning a pleasant vintage drive into an avoidable roadside interruption.

For a 1962 Borgward Isabella, bias-ply construction is the period-correct starting point in broad historical terms, since radial adoption was still uneven by market and specification in the early 1960s. The Isabella is covered here by both numeric bias-ply sizes, 590-13 and 640-13, as well as radial alternatives in 165R13 and 175R13. No original-equipment brand should be assumed without model- and market-specific confirmation.

If your goal is a restoration that reflects how the car would have appeared when new, begin with the correct size family and construction type before worrying about brand preference. Sidewall style also changes the impression dramatically, especially with whitewall options in the bias-ply sizes. For exact factory-delivery guidance by market, body style, or trim, a Borgward club or marque specialist is the right final authority.

Correct tire fitment matters on a 1962 Borgward because judges and knowledgeable enthusiasts often notice whether the tire size, construction type, and sidewall style suit the car's era. A metric radial Blackwall and a numeric bias-ply Wide Whitewall create very different visual and historical impressions, even when both fit 13-inch wheels. On a car judged for originality, those differences can matter.

For an Isabella prepared for concours or marque events, tire choice should be treated as part of the restoration, not an afterthought. The wrong sidewall treatment or a visibly modern construction can stand out against otherwise correct detailing. Before finalizing the tire package, compare your intended event standards and photos of well-restored examples, then confirm expectations with the club or judging body that matters to you.

For a 1962 Borgward Isabella, both 590-13 and 640-13 are numeric bias-ply 13-inch sizes from BFGoodrich with Wide Whitewall styling and an S speed rating. The differences are in their fitment envelope and load figure: 590-13 fits 3.50 to 4.00 inch rims and carries 970 pounds at 32 psi, while 640-13 fits 4.00 to 4.50 inch rims and carries 1,045 pounds at 32 psi.

That means the choice is not simply visual. The wheel's actual width has to match the tire, and the larger 640-13 sits in a slightly broader, higher-capacity range than 590-13. If your Isabella is being restored around original wheel dimensions, verify those first, then choose the bias-ply size that aligns with both the wheel and the stance you want the finished car to have.

1962 Borgward tire safety for highway driving depends on the exact size, construction, age, and condition of the tire. The available 165R13 radial products carry an H speed rating with a 130 mph ceiling, while 590-13 and 640-13 bias-ply options carry an S rating with a 112 mph ceiling. Those ratings are well above normal U.S. highway speeds when the tires are in proper condition.

Even so, a vintage Isabella's overall roadworthiness depends on more than tire speed rating alone. Brakes, suspension condition, steering play, alignment, and the age of the tire itself usually matter more in real-world classic-car driving than the theoretical top-speed ceiling on the sidewall. For longer highway use, focus on condition, inflation, and a sound chassis before assuming a speed-rated reproduction tire solves every safety concern.

Inflation pressure on a 1962 Borgward should begin with the car's original factory recommendation, then be checked against the tire manufacturer's rated pressure and load information for the exact size you choose. The available bias-ply 590-13 is rated at 970 pounds at 32 psi, and the 640-13 is rated at 1,045 pounds at 32 psi. Pressure figures should not be transferred from one size family to another.

That matters because a radial 165R13 or 175R13 should not automatically be inflated like a numeric bias-ply tire simply because both fit a 13-inch wheel. Construction type, casing design, and intended use all affect the correct setup. Use the owner's manual as the vehicle baseline, then confirm the exact tire's own marking and load table so your Isabella is operating within the tire's intended range.

Before taking a 1962 Borgward on a longer drive, inspect all four tires and the spare for cracking, cuts, bulges, irregular wear, and proper inflation. Make sure the wheels are secure, valve stems are in good shape, and the tread is free of damage or embedded debris. If your final setup uses tubes, pay extra attention to valve-stem condition and any signs of slow leakage.

A longer trip in an Isabella also deserves the broader checks any vintage car needs: brakes, fluid levels, belts, hoses, charging system, and basic tool-and-spare readiness. Tire inspection is just one part of that preparation, but it is one of the most visible and preventable failure points. A careful walkaround before departure is often enough to catch age-related issues before they become a roadside problem.