1960 BMW 700 Tires

The 1960 BMW 700 uses two primary tire sizes: 5.60-12 and 520-12. Both are vintage numeric bias-ply sizes built for a 12-inch rim, so the fitment question is not simply rim diameter but which of those two sizes is actually correct for the car in front of you.

A small collector car like the BMW 700 may have received replacement wheels or tires decades ago, so the safest next step is checking the size stamped on the current tires and confirming the wheel setup. Once the installed size is verified, the choice becomes staying with a period-style bias-ply tire or, in the case of 520-12, comparing the available radial equivalents.

The primary tire sizes for the 1960 BMW 700 both use a 12-inch rim diameter. That applies to 5.60-12 as well as 520-12, so the wheel diameter remains consistent even though two different bias-ply tire sizes appear within the vehicle's fitment range.

Diameter is only part of the wheel check. It is still worth confirming the actual wheel width and making sure the car has not been changed to a non-original wheel over the years. That matters even more if the goal is to compare a 520-12 bias-ply tire with 125R12 or P125/75R12 radial alternatives, since those options also need wheel-width and clearance review.

520-12 is a vintage numeric bias-ply size. The 520 portion refers to a nominal section width of about 5.20 inches, and the 12 identifies the rim diameter in inches. On a 1960 BMW 700, it represents one of the two primary bias-ply fitments used on this compact rear-engine car.

Understanding the size code helps when comparing tires that look similar but are not necessarily the same fitment. It also matters because 520-12 has modern radial equivalents, including 125R12 and P125/75R12, while still offering bias-ply choices in different sidewall treatments. Keeping the exact size straight prevents mixing up appearance options with actual fitment requirements.

On the 1960 BMW 700, 520-12 is a primary bias-ply tire size. Available products in that size include BFGoodrich Silvertown Classic Bias Ply tires, so the original fitment direction for 520-12 remains firmly in the vintage bias-ply category rather than a primary radial specification.

That distinction matters because a radial equivalent is an alternative path, not the original construction type for the size. Buyers choosing between bias-ply and radial should think about the car's intended use, desired appearance, and wheel setup. A traditional restoration approach may favor bias-ply, while a driver-oriented setup may justify comparing the available radial-equivalent sizes more closely.

The radial equivalents for 520-12 are 125R12 and P125/75R12. The 125R12 option is a Euro-metric 80-series radial equivalent, while P125/75R12 is the P-metric 75-series radial equivalent. Both keep the same 12-inch rim diameter while changing from the original bias-ply construction to radial construction.

Those two radial sizes use different sizing systems, so they should be treated as comparison options rather than automatic substitutes. A recommended rim-width range of 4 to 5 inches is associated with these equivalents, and the car should also be checked for clearance at the fenders and steering. That extra verification is especially important on compact vintage cars with limited room around the tire.

Start by confirming that the car is actually using the 520-12 size, since that is the primary fitment with stated radial equivalents. The radial alternatives are 125R12 and P125/75R12, and the recommended rim-width range tied to those options is 4 to 5 inches.

A construction change should also prompt a broader look at the car's wheel condition, suspension condition, and available clearance through full steering travel. On a small rear-engine BMW, even modest dimensional differences can matter. The goal is to make sure the wheel and body setup suit the radial option under consideration rather than assuming any 12-inch radial will behave the same as the original bias-ply.

The first consideration is confirming that 520-12 is the actual size on the car, since the 1960 BMW 700 can also use 5.60-12. Once that is settled, the main decisions are staying with a bias-ply tire, comparing available sidewall styles, and deciding whether the car's use justifies looking at the radial-equivalent options.

Within the bias-ply offerings, sidewall treatment can change the car's visual character quite a bit even when the size stays the same. It also helps to compare wheel width, load details when stated, and the car's intended role, whether that is display, light touring, or general collector driving. Choosing carefully keeps the tire aligned with both the fitment and the finished appearance.

For the 520-12 fitment on a 1960 BMW 700, available sidewall styles include blackwall and wide whitewall. Both appear within the BFGoodrich Silvertown Classic Bias Ply line, so the underlying size and vintage construction remain the same while the visual presentation changes noticeably.

That makes sidewall style an appearance decision rather than a change in primary fitment. Blackwall usually gives a plainer, more understated look, while a wide whitewall adds more visual emphasis and can shift the car toward a stronger period-style presentation. The right choice depends on how the BMW is being restored, shown, or driven, not on a universal rule.

The available 520-12 products for the 1960 BMW 700 appear in the BFGoodrich Silvertown Classic Bias Ply series. That series keeps the tire in a traditional bias-ply format while giving the buyer at least two distinct presentation choices through blackwall and wide whitewall versions.

When only one series is in play, the selection process shifts away from comparing multiple tread families and toward confirming size, sidewall style, and overall vehicle goals. Buyers using 520-12 should also consider whether they want to remain with a classic bias-ply presentation or compare 125R12 and P125/75R12 radial equivalents before settling on a final direction.

For a period-style 1960 BMW 700, the starting point is one of the original-format bias-ply sizes used on the car: 5.60-12 or 520-12, depending on the wheel and tire setup already in place. That keeps the sizing convention and construction in line with the car's era rather than moving immediately to a modern radial format.

Appearance goals then narrow the choice further. In 520-12, blackwall and wide whitewall versions create different visual moods while remaining within a vintage bias-ply series. If exact restoration detail matters beyond general period style, it is worth checking marque references or period photography so the tire presentation matches the way this particular BMW is being restored.

Tire construction can change the visual character of a restored 1960 BMW 700 even when rim diameter stays the same. A bias-ply tire preserves the older sizing format and traditional presentation associated with the car's era, while a radial equivalent introduces a more modern construction and metric-style sizing language.

That does not make one approach universally right. A restoration-minded owner may prefer bias-ply for visual authenticity to the period, while a driver-focused owner may accept a radial alternative for practical reasons. The important part is recognizing that the tire is a visible design element on a small car, so construction choice affects more than just the spec line.

Yes, modifications can affect tire fitment on a 1960 BMW 700 even though the primary sizes remain 5.60-12 and 520-12. Changes such as aftermarket wheels, altered wheel width, suspension work, lowering, or body repairs can all influence how much room the tire has and whether the car still matches its intended fitment.

A modified car should be checked more carefully before replacement tires are chosen. Confirm the actual wheel diameter and width, inspect clearance at the fenders and suspension, and look at steering clearance lock to lock. Those checks become even more important if the car is being moved from a bias-ply tire to a radial equivalent in the same nominal rim diameter.

Before driving a 1960 BMW 700 on new tires, inspect the wheels for damage or corrosion, make sure the tires are the intended size for the car, and confirm that inflation pressure is appropriate for the tire being used. It is also smart to look over the valve stems, wheel fasteners, and the surrounding suspension and steering components.

A short initial road test can reveal rubbing, pull, vibration, or other signs that the setup needs another look. Collector cars often sit for long periods, so the rest of the chassis may need attention even when the tires are fresh. Catching those issues early helps protect both the new tires and the drivability of a small vintage BMW.

520-12 tires on a collector 1960 BMW 700 should be kept properly inflated, inspected regularly for cracking, cuts, bulges, or irregular wear, and checked for slow air loss before the car is driven. Cars that spend long stretches in storage also benefit from clean, dry conditions away from prolonged sunlight, heat, and ozone sources.

Because collector vehicles are often driven less, condition can matter as much as tread depth. It helps to examine the tires before each outing and after any long storage period rather than relying on mileage alone. That routine is especially important on a lightweight vintage car where small tires do a lot of visible work in both ride quality and overall road manners.