The 1966 Opel Kadett belongs to the wave of compact European cars that earned a following for simple engineering, light weight, and efficient road manners. For owners restoring one or keeping a tidy driver on the road, tire choice has a big influence on both stance and day-to-day character. This Opel Kadett uses a 155R13 radial on a 13-inch rim, which makes the fitment decision more about choosing the right tire within the proper size than sorting through multiple primary sizes. Blackwall options from Michelin and Dunlop are available, including distinct series with a traditional Euro-car look. The key is matching the correct size to your wheel setup and intended use.
Which Tire Size Is Right for The 1966 Opel Kadett
The 1966 Opel Kadett uses one primary tire size: 155R13. It is a radial fitment on a 13-inch rim, and the same size carries across the covered Base and Wagon models. That means the main decision is choosing the tire that best suits your goals for appearance, road use, and wheel compatibility rather than sorting between multiple factory fitments.
155R13 is a Euro-metric radial size in which 155 refers to nominal section width in millimeters, R identifies radial construction, and 13 is the wheel diameter in inches. On a 1966 Opel Kadett, that format suits the car's compact European fitment and keeps the selection centered on the correct 13-inch wheel. Available choices include blackwall tires from Michelin and Dunlop, with series such as Michelin XAS-FF and SP Sport Aquajet. It is the right size to evaluate when you want a proper radial fitment while still paying close attention to wheel width and overall presentation.
Tire fitment is straightforward across the covered 1966 Opel Kadett sub-models. Base and Wagon applications share the same 155R13 radial size, so the focus stays on selecting the right tire within that fitment and confirming the actual wheels on the car.
1
1966 Opel Kadett Base & Wagon
The 1966 Opel Kadett Base & Wagon uses the same 155R13 radial fitment, keeping tire selection simple at the size level. The real choice is between available blackwall radial options, along with checking wheel width and the car's present setup before installing new tires.
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 1966 Opel Kadett Tires for Sale
Available 155R13 choices for the 1966 Opel Kadett center on radial blackwall tires from Michelin and Dunlop. The product grid lets you compare distinct series, including Michelin XAS-FF and SP Sport Aquajet, along with wheel-width compatibility and other specification details.
These FAQs focus on the 1966 Opel Kadett's 155R13 fitment, 13-inch wheel requirements, available radial tire choices, appearance considerations, and the checks that matter before putting a restored or regularly driven Kadett on the road.
Tire Size & Fitment
What tire size fits a 1966 Opel Kadett?
The 1966 Opel Kadett uses a 155R13 radial tire. That is the primary fitment for the covered Kadett applications here, including the Base and Wagon, and it is built for a 13-inch wheel.
That makes the first step fairly simple: confirm that the car still has its 13-inch wheels and then choose within the available 155R13-style radial options. If the Kadett has been modified over the years with different wheels or suspension changes, check actual wheel diameter, wheel width, and clearance before assuming the existing setup still matches the original fitment.
What size rim does a 1966 Opel Kadett use?
The 1966 Opel Kadett uses a 13-inch rim with its 155R13 tire size. That 13-inch diameter is the key wheel measurement tied directly to the tire fitment.
Wheel width matters too, especially when comparing available radial products. Some 155R13 options are intended for a defined width range, so it is worth measuring the wheels already on the car rather than relying on assumption. A Kadett that has changed hands several times may no longer wear its original wheels, and that can affect both tire selection and final appearance.
Do all 1966 Opel Kadett sub-models use the same tire size?
The covered 1966 Opel Kadett sub-models share the same tire size. Base and Wagon applications both use a 155R13 radial fitment on a 13-inch rim.
That consistency keeps the fitment question simple, but it does not eliminate the need to inspect the actual car. Wheels may have been changed during restoration or regular use, and a replacement tire still needs to suit the wheel width and available space. Once the wheel setup is confirmed, the choice becomes one of tire series, brand, and intended use rather than sub-model differences.
Choosing the Right Tire
What should I consider when choosing a 155R13 tire for a 1966 Opel Kadett?
Start with the correct size, which is 155R13 for the 1966 Opel Kadett, and make sure the tire is suited to the car's 13-inch wheel. From there, compare radial construction details, tire series, brand, and whether the wheel width falls within the tire's usable range.
A restoration-minded owner may care most about a traditional blackwall appearance and a period-style European look, while a regular road-use owner may focus on the character of a particular tire series. It also helps to look at load and weight details where available, especially if the car will be driven regularly rather than displayed or used only occasionally.
What sidewall styles are available for 1966 Opel Kadett tires?
The available 1966 Opel Kadett tires in this fitment use a blackwall sidewall style. That keeps the presentation clean and in line with the understated look many compact European cars of the period wear well.
Since sidewall choice is not the main variable here, the buying decision shifts toward tire series, brand, and wheel compatibility. Blackwall tires can still differ in overall visual character, especially between one vintage-inspired radial design and another. If appearance matters as much as road use, compare how each tire suits the car's stance and restoration direction once mounted on the proper wheel.
What brands offer tires for the 1966 Opel Kadett?
Michelin and Dunlop both offer tires in the 1966 Opel Kadett's 155R13 fitment. The available product range includes Michelin XAS-FF and Dunlop SP Sport Aquajet series, both in blackwall radial form.
Choosing between them is less about brand hierarchy and more about the details that matter to your car. Compare the specific tire series, wheel-width compatibility where stated, and the kind of appearance you want on the finished Kadett. That approach is especially helpful on compact vintage European cars, where the tire can noticeably influence both proportions and the driving impression.
Restoration & Appearance
Which tire should I choose for a period-style 1966 Opel Kadett?
A period-style 1966 Opel Kadett starts with the correct 155R13 radial size on the proper 13-inch wheel. Within that fitment, a blackwall radial with a traditional European look is usually the most natural direction for a restoration-oriented or well-preserved driver.
The best choice depends on whether the car is being finished as a careful restoration, a tidy vintage road car, or a lightly personalized driver. Tire series details and overall visual character can matter as much as basic fitment. When exact originality is important, compare the tire choice against marque references or period photography before settling on a final presentation.
Does correct tire fitment matter for a 1966 Opel Kadett restoration?
Correct tire fitment matters a great deal on a 1966 Opel Kadett because it affects stance, wheel appearance, and how authentic the finished car feels. Using the proper 155R13 size keeps the restoration anchored to the dimensions intended for the Kadett's compact European proportions.
Even when the tire size is right, the final result can still vary depending on wheel width, tire series, and how the car sits after restoration work. A Kadett with altered wheels or suspension may need extra checking before new tires go on. Taking time to confirm those details helps avoid a finished look that feels visually off despite using the correct nominal size.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1966 Opel Kadett?
Yes, modifications can affect tire fitment on a 1966 Opel Kadett even when the intended tire size remains 155R13. Changes such as aftermarket wheels, altered wheel width, suspension lowering, or bodywork adjustments can influence how much space the tire has and how it sits in the wheel opening.
A Kadett that has been customized or updated over the years should be checked carefully before new tires are installed. Confirm wheel diameter first, then measure wheel width and inspect steering and fender clearance through the full range of motion. Those checks matter just as much as the printed tire size when the car no longer sits exactly as it did when new.
What should I inspect before driving a 1966 Opel Kadett on new tires?
Before driving a 1966 Opel Kadett on new tires, inspect the wheels, valve stems, and lug hardware, and make sure the tires are properly mounted and inflated. It is also wise to look over suspension and steering components, since worn parts can affect how a compact vintage car tracks and responds.
A short, careful road test helps confirm that the tires clear the body and suspension and that the car does not pull, rub, or vibrate. After the first miles, recheck pressure and give the tires another visual inspection. That routine is especially useful on collector cars that may have spent long periods parked or may be returning to regular road use after restoration.
How should 155R13 tires on a collector 1966 Opel Kadett be maintained?
155R13 tires on a collector 1966 Opel Kadett should be kept at the proper pressure, inspected regularly for cracking, cuts, bulges, and uneven wear, and protected from long periods of heat, sunlight, moisture, and ozone exposure. Low annual mileage does not prevent aging, so condition matters as much as tread depth.
A Kadett that spends much of its life in storage benefits from periodic pressure checks and occasional movement to avoid long-term stress in one contact patch. Before any longer drive, look for signs of air loss and verify that the tires still seat and run evenly. Good maintenance preserves both road manners and the appearance of a well-kept vintage Opel.
