The 1968 BMW 1800 sits in the Neue Klasse era that helped define BMW’s reputation for compact sport sedans with crisp road manners and understated European character. For owners restoring one for period presentation or preparing one for regular vintage driving, tire choice plays a visible and mechanical role in how the car feels on the road. This model uses either a 165R14 radial or a 6.00-14 bias-ply tire on a 14-inch rim. That leaves room to choose between traditional bias-ply character and blackwall radial options from Pirelli, Michelin, and Vredestein. The right decision depends on whether appearance, driving feel, and wheel compatibility matter more for your particular 1800.
Which Tire Size Is Right for The 1968 BMW 1800
The 1968 BMW 1800 uses two primary tire sizes, and the difference is mainly construction rather than wheel diameter, since both fit a 14-inch rim. The first step is deciding whether your car is staying with a period-style 6.00-14 bias-ply setup or moving to, or retaining, a 165R14 radial. Once that is clear, the next choice becomes brand, tire series, and the road-use character you want from the car.
A 165R14 size uses a 165-millimeter nominal section width, radial construction, and a 14-inch rim diameter. In this format, the aspect ratio is not stated in the size code and is commonly associated with an 80-series profile. On a 1968 BMW 1800, this size suits owners looking for a more modern radial format while staying within a vintage European sizing convention. Available blackwall choices include Pirelli Cinturato CA67, Michelin XAS, and Vredestein Sprint Classic, making this size especially relevant for drivers balancing classic appearance with established radial tire options.
A 6.00-14 tire is a numeric bias-ply size in which the leading number refers to nominal section width in inches and the final number identifies a 14-inch rim. Bias-ply construction gives this size a more traditional period feel and visual presentation for a 1968 BMW 1800. This format is often the right place to start when the goal is a restoration-oriented look or a more era-appropriate tire construction. It should be evaluated carefully against the car’s actual wheel condition, intended use, and whether originality of appearance matters more than radial driving behavior.
Fitment is straightforward across the covered 1968 BMW 1800 sub-models because the same two tire sizes appear for both Base and Ti. The key decision is not sub-model separation, but whether the car should run a radial 165R14 or a period-style 6.00-14 bias-ply on its 14-inch wheels.
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1968 BMW 1800 Base & Ti
The 1968 BMW 1800 Base and Ti share the same two tire-size paths: 165R14 in radial construction and 6.00-14 in bias-ply form. That means tire selection centers on construction choice, driving intent, and whether a restoration-style look or a vintage radial setup better suits the car.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1968 BMW 1800 Tires for Sale
Current 165R14 choices focus on blackwall radial tires from Pirelli, Michelin, and Vredestein. The available options vary by tire series, rim-width specification, weight, and overall vintage-European presentation, giving BMW 1800 owners several ways to compare road-use priorities within the same size.
Common questions for the 1968 BMW 1800 usually center on choosing between 165R14 and 6.00-14, understanding 14-inch rim fitment, and deciding whether a radial or bias-ply setup makes more sense for the car’s appearance and use.
Tire Size & Fitment
What tire size fits a 1968 BMW 1800?
The 1968 BMW 1800 uses two primary tire sizes: 165R14 in radial construction and 6.00-14 in bias-ply construction. Both sizes are tied to the same model coverage, so the fitment question is less about trim differences and more about which construction type matches the car’s setup and intended use.
That means the real next step is confirming whether the car still has a period-style bias-ply arrangement or is running radial tires on its 14-inch wheels. A car that has been restored, modified, or fitted with different wheels over time should be checked carefully before selecting one size path over the other.
What size rim does a 1968 BMW 1800 use?
The tire sizes used on the 1968 BMW 1800 both fit a 14-inch rim. That applies to the radial 165R14 and the bias-ply 6.00-14, so wheel diameter remains consistent even though the sizing systems and tire constructions differ.
Wheel diameter is only part of the picture, especially on an older car that may no longer have its original wheels. It is worth checking actual wheel width, wheel condition, and any prior wheel changes before mounting tires, particularly if the car has moved from bias-ply to radial construction at some point in its life.
Do all 1968 BMW 1800 sub-models use the same tire size?
The covered 1968 BMW 1800 Base and Ti sub-models share the same two tire-size choices: 165R14 radial and 6.00-14 bias-ply. There is no separate size split between those sub-models here, so the fitment path stays consistent across both versions.
Because the sizes are shared, the more important decision is which construction best fits the car’s purpose. A restoration-oriented owner may lean toward the visual and period feel of bias-ply, while a driver-focused owner may compare the available 165R14 radial options and verify wheel-width compatibility before making a change.
Bias-Ply & Radial Options
Is 6.00-14 a bias-ply or radial tire for the 1968 BMW 1800?
On the 1968 BMW 1800, 6.00-14 is a bias-ply tire size. It uses the older numeric sizing format, where the width is expressed in inches and the construction reflects the period tire style associated with many cars of this era.
That matters because a bias-ply setup affects both appearance and the way the car presents itself on the road. Owners choosing 6.00-14 usually do so for traditional character or restoration-oriented reasons, while anyone considering a switch should confirm wheel condition, clearance, and whether the car is meant for show-focused use or more regular driving.
Should I use bias-ply or radial tires on a 1968 BMW 1800?
Both approaches exist for the 1968 BMW 1800. The 6.00-14 size represents the bias-ply path, while 165R14 is the radial option, so the decision comes down to the kind of driving experience and visual presentation you want from the car.
Bias-ply tires generally suit owners aiming for a more traditional look and feel, while radial tires often appeal to owners who want a vintage European radial format for road use. The best choice depends on the wheels actually on the car, how the suspension is set up, and whether the car is being restored, toured, or shown.
What should I check before converting my 1968 BMW 1800 from bias-ply to radial tires?
A move from 6.00-14 bias-ply to 165R14 radial on a 1968 BMW 1800 starts with confirming that the car’s 14-inch wheels are suitable for the radial tire you plan to use. Wheel width, wheel condition, and the specific tire’s rim-width requirements should all be reviewed before making the change.
It also helps to inspect steering and fender clearance, especially on a vintage car that may have had suspension work or wheel changes over the years. Once the wheel setup is confirmed, compare the available radial choices by tire series and specification so the conversion matches both the car’s intended use and its appearance goals.
Choosing the Right Tire
What should I consider when choosing a tire for a 1968 BMW 1800?
Start with the correct primary size path for the car: 165R14 if you want a radial setup or 6.00-14 if you want bias-ply construction. From there, the important factors are wheel compatibility, intended road use, visual style, and whether the car is being kept close to a period-style presentation.
A driver that sees regular road miles may lead you toward the available 165R14 radial offerings, while a restoration-focused car may keep the traditional bias-ply look. It is also smart to compare tire series, blackwall presentation, and any rim-width specifications before choosing a tire for long-term use.
What brands offer tires for the 1968 BMW 1800?
In 165R14 radial fitment, the 1968 BMW 1800 has options from Pirelli, Michelin, and Vredestein. Those brands appear across vintage-oriented radial offerings including the Cinturato CA67, Michelin XAS, and Sprint Classic, all in blackwall form.
Brand choice should be treated as part of the overall selection process rather than the only deciding factor. Compare the tire series itself, the wheel-width requirements where stated, and the character you want from the car, especially if the BMW is being prepared for preservation use, occasional touring, or more regular vintage driving.
What tire series are available for the 1968 BMW 1800?
The 165R14 radial options for the 1968 BMW 1800 include the Pirelli Cinturato CA67, Michelin XAS, and Vredestein Sprint Classic series. Each is a vintage-style radial offering in blackwall form, giving the car a distinctly European presentation within the correct radial size format.
Series choice matters because it helps shape the balance between appearance, brand preference, and fitment details such as rim-width compatibility. Once the correct size and construction have been settled, comparing series is a practical way to narrow the field without drifting away from the BMW 1800’s vintage tire character.
Restoration & Appearance
Which tire should I choose for a period-style 1968 BMW 1800?
For a period-style 1968 BMW 1800, the first decision is whether the car should retain a traditional 6.00-14 bias-ply presentation or use a 165R14 radial that still looks appropriate for a vintage European sedan. Both sizes belong to the model, but they create different visual and driving impressions.
A restoration-oriented owner usually starts by deciding how strictly the car should reflect its era in both stance and road feel. When exact originality matters, it is wise to compare your car against marque references, period photos, and restoration records before settling on a construction type or tire presentation.
How does tire construction affect the appearance of a restored 1968 BMW 1800?
Tire construction changes the overall presentation of a restored 1968 BMW 1800 even when the rim diameter stays the same. A 6.00-14 bias-ply gives the car a more traditional period look, while a 165R14 radial reflects the vintage European radial style seen on many classic sedans of the era.
That difference can influence how the car sits visually and how authentic the finished restoration feels to its owner. On a show-focused project, construction choice should be considered alongside wheel style, ride height, and intended use so the finished BMW looks coherent rather than simply wearing the correct nominal size.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1968 BMW 1800?
Yes, modifications can affect tire fitment on a 1968 BMW 1800 even when the nominal tire size is correct. Aftermarket wheels, changes in wheel width, suspension alterations, or body work can all influence whether a 165R14 radial or 6.00-14 bias-ply has the clearance and wheel support it needs.
A modified car should be checked at the wheel, not just by the sidewall size. Measure the actual rim, inspect steering clearance at full lock, and look for signs of contact around the fenders and suspension so the tire choice matches the BMW’s current configuration rather than its original specification.
What should I inspect before driving a 1968 BMW 1800 on new tires?
Before driving a 1968 BMW 1800 on new tires, inspect the wheels, valve stems, and overall mounting condition, then confirm that inflation is set appropriately for the tire being used. It is also smart to check for obvious clearance issues, uneven suspension stance, and any signs that the car has mismatched wheels or altered hardware.
A short shakedown drive should be followed by another visual inspection for rubbing, unusual wear, or pressure loss. On an older BMW, roadworthiness depends on more than fresh rubber, so steering components, alignment condition, and general chassis health should also be in good order before longer use.
How should tires on a collector 1968 BMW 1800 be maintained?
Tires on a collector 1968 BMW 1800 should be checked regularly for pressure loss, sidewall cracking, cuts, bulges, and uneven tread wear, even if the car is driven only occasionally. Low-use vintage cars often age their tires through time and storage conditions rather than mileage alone.
Keep the car stored away from prolonged sunlight, excess heat, moisture, and ozone-producing equipment when possible, and inspect the tires before each road outing. A BMW that sits for long periods also benefits from routine wheel and suspension checks so the tires are not carrying hidden alignment or mechanical problems.
