1961 Opel Tire Fitment Guide

1961 Opel vehicles use four tire sizes across three models. The Opel 1200 and Opel Olympia use either 165R13 radial tires or 590-13 bias-ply tires, while the Opel Caravan & Wagon uses either 175R13 radial tires or 640-13 bias-ply tires. All four sizes fit 13-inch rims, but the recommended rim-width range differs by size where that information is available: 165R13 uses 4.50 to 6.00-inch rims, 590-13 uses 3.50 to 4.00-inch rims, and 640-13 uses 4.00 to 4.50-inch rims.

That means year and make alone are not enough for a correct starting point on 1961 Opel fitment. A 1200 or Olympia owner can compare two construction types within one size family, while a Caravan & Wagon owner needs the larger wagon-specific sizes. Before ordering, confirm the model on the car's identification paperwork and check the actual wheel width, especially if the wheels may have been changed at some point in the car's life.

On a 1961 Opel tire, 590-13 is a numeric bias-ply size. The 13 is the wheel diameter in inches, while the 590 designation places the tire in a traditional section-width family used before modern metric sizing became common. On 1961 Opel vehicles, 590-13 belongs to the 1200 and Olympia and appears here as a bias-ply option with a wide whitewall sidewall style and an S speed rating, which carries a 112 mph ceiling.

A buyer usually encounters 590-13 when restoring a small early-1960s Opel to a factory-style appearance and driving feel. It should not be treated as interchangeable with the Caravan & Wagon's 640-13 simply because both are 13-inch tires. If the car is being judged for originality, this older numeric bias-ply format often aligns more closely with period expectations than a modern-looking radial sidewall.

On a 1961 Opel tire, 165R13 is an older Euro-metric radial size. The 165 is the section width in millimeters, the R indicates radial construction, and the 13 is the rim diameter in inches; in this style of sizing, the profile is conventionally around an 80-series unless another aspect ratio is stated. For 1961 Opel vehicles, 165R13 fits the 1200 and Olympia rather than the Caravan & Wagon, and available examples carry H speed ratings with a 130 mph ceiling.

That decoding helps separate a radial replacement from the older 590-13 bias-ply size used on the same model family. The two choices serve different ownership goals even though both mount on 13-inch wheels. If your car already wears metric radial tires, checking the sidewall for the exact 165R13 marking is a good way to confirm whether the car has already moved away from a stock-style bias-ply setup.

For a 1961 Opel 1200 or 1961 Opel Olympia, the choice between 165R13 and 590-13 is mainly a question of construction and ownership goals. The 165R13 is a radial size available in blackwall form from Michelin and Dunlop, while the 590-13 is a bias-ply size available as a wide whitewall from BFGoodrich. Both mount on 13-inch rims, but they represent different tire eras and give the car a different visual and driving character.

Owners restoring a car for a more factory-style presentation usually lean toward the numeric bias-ply route, especially when whitewall appearance matters. Owners who expect more regular road use often prefer the radial format because it follows a later, more familiar construction style. The right answer starts with how the car will be used and presented, not with the assumption that one size is automatically correct for every 1961 Opel passenger model.

1961 Opel tires appear here in two distinct sidewall styles. The 165R13 radial choices for the 1200 and Olympia are blackwalls, while the 590-13 and 640-13 bias-ply choices are wide whitewalls. That split is important because sidewall style changes the look of a small European car almost as much as the construction type does, especially on cars restored to an early-1960s appearance.

A blackwall radial gives a cleaner, more understated European look, while a wide whitewall bias-ply creates a more period-styled presentation that many collectors expect on a restored car from this era. Caravan & Wagon owners should be especially careful not to choose sidewall style first and size second, because the wagon uses its own larger fitment family. Decide the model, then decide whether the visual goal is stock-style whitewall presence or a more restrained blackwall radial appearance.

Three brands cover 1961 Opel fitments here. Michelin and Dunlop offer 165R13 radial tires for the Opel 1200 and Opel Olympia, while BFGoodrich supplies the 590-13 and 640-13 bias-ply sizes used on the passenger cars and the Caravan & Wagon. Within 165R13, the available series include Michelin XAS-FF, Michelin XAS, and Dunlop SP Sport Aquajet, all in blackwall form.

That brand mix reflects two different paths for a 1961 Opel owner. Michelin and Dunlop keep the car in a period European radial vocabulary, while BFGoodrich covers the whitewall bias-ply side of the market for owners chasing a traditional vintage presentation. Brand choice should come after confirming the correct size for your model, because the Caravan & Wagon does not share the same fitments as the 1200 and Olympia.

Rim-width guidance for 1961 Opel tires depends on the exact size. The 165R13 radial fits 4.50 to 6.00-inch rims, the 590-13 bias-ply fits 3.50 to 4.00-inch rims, and the 640-13 bias-ply fits 4.00 to 4.50-inch rims. All of these tires mount on 13-inch wheels, but width compatibility is not the same from one size to another, even when the wheel diameter matches.

That matters most on cars that may have been altered over the decades, especially if wider aftermarket wheels replaced the original rims. A 1200 or Olympia owner comparing 165R13 to 590-13 should check wheel width before assuming both constructions suit the same wheel. Measuring the actual rim or reading the wheel stamping is the safest step, particularly on imported cars where replacement wheels have often changed more than once.

Inner-tube requirements on 1961 Opel tires depend on the exact product and size. The 165R13 radial category varies by product, with Michelin versions marked TL for tubeless use while the Dunlop example does not carry the same tube marking here. The bias-ply 590-13 and 640-13 products shown do not add a tubeless marking in the size description, so tube choice should be confirmed against the individual tire and wheel combination rather than assumed across the whole year and make.

The wheel itself matters almost as much as the tire. Many collector cars still run original steel wheels, and condition at the bead seat and valve area can affect whether tubeless use is appropriate even when the tire itself supports it. Confirm the sidewall marking on the exact tire you choose and inspect the wheel carefully before mounting, especially if the car has sat for years or still wears original paint inside the rim.

Original 1961 Opel wheels can often be used with more than one tire size because all four fitments in this year and make use a 13-inch rim diameter. That means a 1200 or Olympia can physically stay within a 13-inch wheel family when moving between 590-13 bias-ply and 165R13 radial, and the Caravan & Wagon can do the same between 640-13 and 175R13. Rim width still needs to match the tire, and that requirement changes by size.

The practical takeaway is that wheel diameter alone does not settle the question. A surviving factory wheel may be correct in diameter but too narrow or too wide for a different construction or size family. Before reusing original 1961 Opel wheels, verify the wheel width and inspect for rust, bends, or prior repairs, especially if the car is changing from a narrow bias-ply setup to a wider radial footprint.

A 1961 Opel should be stored in a cool, dry space away from direct sunlight, electric motors, battery chargers, furnaces, and other ozone-producing sources that accelerate sidewall aging. Keep the tires properly inflated, avoid parking on damp soil or bare concrete for long periods, and move the car occasionally so the same tread area does not carry the load continuously. Bias-ply tires such as 590-13 and 640-13 are especially prone to temporary flat-spotting during storage compared with radial designs.

For longer storage, many collectors place the car on stands or at least roll it a short distance every few weeks. That approach helps protect both the tires and the suspension bushings on a low-use vintage car. If your 1961 Opel is stored with wide whitewalls, keep them clean and shielded from strong cleaners or prolonged UV exposure so the sidewall appearance does not age faster than the rest of the tire.

Tire life on a 1961 Opel is usually determined more by age than by mileage, because collector cars often accumulate very few annual miles. A good working rule is to inspect closely once tires are around five to seven years old and to treat about ten years as the point where replacement deserves serious consideration regardless of remaining tread. The DOT date code on the tire sidewall is the most useful age reference, even on a car that has spent most of its life indoors.

A lightly driven Opel can still ride on tires that look usable but have hardened internally or developed age cracks at the sidewall and tread base. That is particularly important on older bias-ply constructions, though radial tires age out as well. If a newly acquired 1961 Opel comes with old-looking tires and no clear service history, start with age verification before putting any trust in tread depth alone.

Tires on a 1961 Opel should be checked before every drive and given a more thorough inspection before any extended outing. Look for sidewall cracking, weathering around the bead area, tread separation, bulges, embedded objects, uneven wear, and slow pressure loss. If the car uses tube-type or possibly tube-serviced fitments, valve stems and tube condition deserve extra attention because many collector cars fail at those smaller components before the tire itself shows obvious trouble.

Frequent inspection matters because a vintage Opel may sit for weeks and then be expected to drive at modern traffic speeds without much warning time for a developing problem. Make pressure checks part of the routine, and inspect the spare as well as the four road tires. A sound-looking spare from decades ago is still an old tire, and it should not be the weak link on a longer trip.

A 1961 Opel 1200 would have been associated with a period when bias-ply construction was still standard equipment on many compact cars, even as radial technology was gaining ground in Europe. Within the fitments used on the 1961 Opel 1200, the bias-ply size is 590-13 and the radial alternative is 165R13. That makes 590-13 the closer match to an early-1960s factory-style construction approach, while 165R13 reflects the radial format many owners and restorers also consider for later road use or market-specific history.

Original-market details can vary by destination, trim, and dealer practice, so serious authenticity work still benefits from factory literature and Opel marque-club guidance. If the goal is concours judging, start by confirming whether the event values exact construction type, sidewall style, or both. For a touring restoration, many owners simply choose whether they want the car to look and feel like an early-1960s bias-ply Opel or a later-updated radial-equipped example.

Correct tire fitment does matter when showing a 1961 Opel, because judges and knowledgeable enthusiasts often notice size format, construction type, and sidewall appearance right away. On a small European car from 1961, a numeric bias-ply size such as 590-13 or 640-13 presents differently from a metric radial like 165R13 or 175R13, and that difference can affect how authentic the car looks. Whitewall width versus blackwall presentation can also change whether the car reads as restored, preserved, or visually updated.

What counts as correct depends on the standards of the event and the market history of the specific model. A local cruise night may not care, while a marque-focused judged show may expect a more exact period presentation. Before spending time and money, check the rulebook or ask the organizers whether they judge tire construction and sidewall style, then match the tire to the level of authenticity the event actually rewards.

For a 1961 Opel using 165R13, Michelin XAS and Michelin XAS-FF share the same basic size marking of 165HR13 82H TL, the same 13-inch rim diameter, the same 4.50 to 6.00-inch rim-width range, the same blackwall sidewall style, and the same H speed rating with a 130 mph ceiling. The clearest difference here is product series and weight, with Michelin XAS-FF shown at 20 pounds and Michelin XAS shown at 9 pounds.

Because the core fitment details align so closely, the decision between those two Michelin series is less about size compatibility and more about the specific product character you want on the car. A restorer or driver comparing them should focus on the exact series name molded into the sidewall, expected appearance, and the overall presentation they want from the finished Opel. Keeping the same size and speed rating avoids turning that series decision into a fitment gamble.

1961 Opel tires can be suitable for highway use when they are the correct size, properly mounted, in sound condition, and used within their speed rating. The radial 165R13 examples carry an H rating, which corresponds to a 130 mph ceiling, while the 590-13 and 640-13 bias-ply options carry an S rating, which corresponds to a 112 mph ceiling. In ordinary real-world driving, the condition of the tire and the mechanical state of the car usually matter more than the rating number alone on a compact early-1960s Opel.

That does not mean every old Opel is automatically ready for freeway use just because the tire's speed rating looks generous on paper. Brakes, steering, wheel bearings, suspension bushings, alignment, and age-related wear all shape how comfortable and stable the car will feel at sustained speed. A fresh set of correct tires is only one part of making a 1961 Opel roadworthy for modern traffic.

Inflation pressure for 1961 Opel tires should follow the factory vehicle recommendation first, then be checked against the reproduction tire's own load-and-pressure information where it is available. Among these fitments, the 590-13 carries a maximum load of 970 pounds at 32 psi, and the 640-13 carries a maximum load of 1,045 pounds at 32 psi. The 165R13 radial category also includes a load figure of 1,047 pounds on one Dunlop product, but that should not be treated as a universal pressure setting for every 165R13 tire.

Maximum sidewall pressure is not always the same as the best operating pressure on a light vintage car. Start with the owner's manual or factory placard if available, then confirm that the chosen tire can support the car at that pressure. Keep front and rear pressures appropriate to the vehicle's original balance, and avoid copying a pressure number from one size family to another just because the wheel diameter is the same.

Before a longer drive in a 1961 Opel, inspect all five tires for cracking, bulges, cuts, unusual wear, and signs of impact damage, then verify pressures when the tires are cold. Check the valve stems, confirm lug fasteners are properly tightened, and make sure the spare is inflated and usable. If the car runs tube-type or possibly tube-serviced fitments, pay special attention to stem condition and any signs of chafing or leakage that can develop after long storage.

Tires are only one part of the pre-trip routine on a car of this age. A sensible longer-drive check also includes brakes, wheel bearings, lights, fluid levels, fan belt condition, and cooling-system readiness. On a compact 1961 Opel, a small issue can become a trip-ending problem quickly, so a careful walk-around and short test drive before departure are worth more than simply trusting that the car drove well the last time out.