Opel 1900 Tires
The Opel 1900 brought German compact-car engineering into the American market during the early 1970s, a period when smaller imported sedans and coupes were becoming a familiar sight on U.S. roads. Produced from 1971 through 1975, Opel 1900 models sit at an interesting point in tire history, where period-correct bias-ply options and more modern radial designs can both appear in the same model range. That makes tire selection less straightforward than it first looks, because the question is not just size but also construction, sidewall style, and the type of driving or restoration goal you have in mind. For an Opel 1900, the first check is the actual size marked on the car now and whether you want radial or bias-ply construction.
Opel 1900 Tire Size Guide
The Opel 1900 uses 2 distinct tire sizes across the 1971 to 1975 production span, and both sizes share the same 13-inch rim diameter. One choice is a period-style numeric bias-ply size, while the other is a metric radial size more familiar to modern drivers. The right selection comes down to whether your Opel 1900 is being kept closer to original bias-ply appearance or driven on radial construction for later-era road manners.
165R13 fits Opel 1900 models from 1971 through 1975 and appears as the radial-size option across the full production run. In this metric radial format, 165 is the section width in millimeters, R identifies radial construction, and 13 is the required rim diameter in inches. Choose this size when you want a radial tire on a 13-inch wheel, especially for regular road use or a later-period driving feel.
600-13 fits Opel 1900 models from 1971 through 1975 and represents the bias-ply alternative offered throughout the same years. In this numeric bias-ply format, 600 indicates a nominal 6.00-inch section width and 13 is the rim diameter in inches. Choose this size when period-correct bias-ply appearance matters, and note that a tube is required.
Opel 1900 Tires by Year
The year listing below shows which tire sizes apply to each 1971 through 1975 Opel 1900. Every year in this range carries both 165R13 and 600-13, so the key choice is usually radial versus bias-ply rather than a year-to-year wheel change. Use the year as your starting point, then match the tire type to the car’s current wheels and restoration goals.
1971 Opel 1900
- 165R13
- 600-13
1972 Opel 1900
- 165R13
- 600-13
1973 Opel 1900
- 165R13
- 600-13
1974 Opel 1900
- 165R13
- 600-13
1975 Opel 1900
- 165R13
- 600-13
Best Opel 1900 Tires for Sale
Available Opel 1900 tires span 3 brands across 5 products in 165R13 and 600-13 sizes. Confirm the correct size, construction type, and 13-inch rim fit before selecting, especially if originality matters.
165R13 Products
These are the available products for 165R13.
600-13 Products
These are the available products for 600-13.
Frequently Asked Questions
These Opel 1900 tire questions focus on the two-size overlap used from 1971 to 1975, including how to choose between radial and bias-ply construction, what the size codes mean, and which sidewall and brand options are available.
Size Basics & Fitment
The Opel 1900 uses two tire sizes across the 1971 through 1975 model years: 165R13 and 600-13. Both sizes fit 13-inch rims, but they represent different tire types. The 165R13 offerings are radial tires, while the 600-13 offerings are bias-ply tires with whitewall options. That means the Opel 1900 size question is tied not only to year, but also to the type of tire construction and appearance you want on the car.
If your Opel 1900 is already fitted with radial tires and you want everyday drivability closer to what modern drivers expect, 165R13 is the more natural place to start. If the goal is a period-style presentation with classic whitewall styling, 600-13 may be the better match. Check the tire size stamped on the sidewall, verify the wheel width, and make sure the tire choice matches the way the car will actually be used.
On an Opel 1900, 600-13 is a numeric bias-ply tire size. The 600 refers to a nominal section width of 6.00 inches, and the 13 refers to the wheel diameter in inches. It is an older American size format rather than a modern metric radial code, and the available Opel 1900 products in this size are bias-ply tires. Those products are built for 13-inch rims and are offered with whitewall styling.
That matters because a 600-13 Opel 1900 tire should not be treated as the same kind of tire as a 165R13 radial even though both fit 13-inch wheels. Bias-ply tires give the car a more period-correct look and feel, and they also require an inner tube. If your car is being restored to an earlier 1970s presentation, 600-13 is often the size buyers examine first.
The Opel 1900 uses a 13-inch rim diameter across the tire options listed for 1971 through 1975. Both 165R13 radial products and 600-13 bias-ply products are built for 13-inch wheels, so there is no wheel-diameter change within this model range. The difference between the two sizes lies in construction type, rim-width suitability, and sidewall presentation rather than rim diameter itself.
Even with a consistent 13-inch wheel, it is still worth checking the actual wheel on the car because radial and bias-ply offerings can have different rim-width ranges. The 165R13 radial products suit wider 13-inch rims than the 600-13 bias-ply products. A quick measurement of the wheel and a look at the sidewall markings on the existing tires will usually clarify which direction makes the most sense.
The Opel 1900 requires inner tubes when fitted with the 600-13 bias-ply tires offered for this model range. Those products are bias-ply construction in a classic numeric size and should be treated as tube-type fitments. The 165R13 options are radial tires and do not carry that same tube requirement in the available listings. Tube use therefore depends on which of the two Opel 1900 tire formats you choose.
If your Opel 1900 is being restored with the BFGoodrich 600-13 bias-ply tires, plan the tire-and-tube package together rather than treating the tube as an afterthought. If the car is already on metric radials, changing to 165R13 radial products keeps the fitment closer to that setup. Matching the tire type to the wheel condition is also important, especially on a collector car that may sit for long periods between drives.
Crossply vs Radial
The Opel 1900 is listed with both radial and bias-ply choices, so the right answer depends on how you use and present the car. The 165R13 size is the radial option, while 600-13 is the bias-ply option. Radials are generally chosen for more familiar road manners, while bias-ply tires are often selected for a more period-correct look and driving character. Both fit the same 13-inch rim diameter, but they are not interchangeable in feel.
If your Opel 1900 is a driver that sees regular street mileage, many owners will prefer to stay with the radial size already associated with the car. If the car is being restored with strong attention to period presentation, the bias-ply 600-13 may be more in character. Choose the construction first, then confirm wheel width, sidewall style, and the type of use the car will actually see.
Yes, radial tires can change how an Opel 1900 feels on the road compared with bias-ply tires. The 165R13 products are radial constructions, while the 600-13 products are bias-ply constructions, and those two tire types typically produce different steering feel, ride behavior, and response. The tire size listings themselves show that Opel 1900 buyers are often choosing not just a size, but a driving character. That makes the decision more significant than a simple replacement by rim diameter alone.
A radial-equipped Opel 1900 will generally appeal to owners who want the car to feel easier to live with in modern traffic. A bias-ply-equipped Opel 1900 usually suits a restoration-minded owner who accepts more vintage manners in exchange for the right visual impression. If consistency matters, fit the same construction type at all four corners and avoid treating one axle as an experiment.
Mixing crossply and radial tires on an Opel 1900 is not a good practice. The available sizes show two fundamentally different constructions: 165R13 radial and 600-13 bias-ply. Those tire types react differently under steering, braking, and cornering, which can create inconsistent behavior in a light vintage car. Even though both fit 13-inch rims, matching rim diameter alone does not make them suitable to combine on the same car.
The better approach is to decide whether your Opel 1900 will be a radial car or a bias-ply car and equip all four wheels accordingly. That keeps the handling balance more predictable and makes future maintenance simpler. If the car came to you with mixed construction types already installed, treat that as a reason to inspect the entire tire setup before putting real road miles on it.
Buying the Right Tire
A 1973 Opel 1900 can use either 165R13 or 600-13, because both sizes are listed for that model year. The key difference is that 165R13 is a radial tire size and 600-13 is a bias-ply tire size, with both built around a 13-inch rim. That means the correct choice depends on the wheel width on the car and the kind of driving or restoration result you want. Year alone does not narrow it down to one size.
Start by checking the sidewall marking on the current tires, then verify the wheel width before replacing anything. If the car already runs metric radials on wider 13-inch rims, staying with 165R13 is usually the cleanest path. If it is a more period-style restoration with classic whitewall bias-ply tires, 600-13 may be the intended look. The car’s present configuration often tells the story more clearly than the model year alone.
Opel 1900 tires in the listed range are available with blackwall, narrow whitewall, and wide whitewall sidewall styles. The 165R13 radial products are blackwall tires, while the 600-13 bias-ply products are offered in 1.00-inch and 2.00-inch whitewall versions. That gives Opel 1900 owners a clear choice between a more understated radial look and a more styled period bias-ply presentation. Sidewall appearance is therefore tied closely to construction type in this range.
If your Opel 1900 is being kept close to a 1970s European road-car look, blackwall radials will usually feel visually appropriate. If the car is being built with a stronger period-custom or classic bias-ply presentation, the whitewall 600-13 options offer that effect without changing rim diameter. Match the sidewall style to the rest of the car, especially wheel covers, ride height, and the level of originality you want.
The Opel 1900 tire options listed here come from Michelin, Dunlop, and BFGoodrich. Michelin supplies 165HR13 radial options in the XAS-FF and XAS lines, Dunlop offers a 165R13 radial in the SP Sport Aquajet series, and BFGoodrich supplies the 600-13 bias-ply whitewall options. That means Opel 1900 buyers have access to both European-style radial names and an American classic bias-ply offering. Brand choice follows the construction and visual direction you want.
A buyer focused on road-going radial fitment will usually be comparing Michelin and Dunlop within the 165R13 family. A buyer focused on bias-ply appearance and whitewall presentation will be looking at BFGoodrich in 600-13. It helps to decide first whether the car is being set up for driving character, restoration presentation, or a blend of both, because that narrows the brand field very quickly.
The Opel 1900 is listed with four tire series: Michelin XAS-FF, Michelin XAS, Dunlop SP Sport Aquajet, and BFGoodrich Silvertown Classic Bias Ply. The first three are radial-series offerings in the 165R13 family, while Silvertown Classic Bias Ply is the period-style 600-13 option. The biggest difference is not just brand naming but construction approach, with radial and bias-ply tires serving different restoration and driving priorities. Sidewall style also changes with series, since the BFGoodrich bias-ply choices are whitewall tires.
For an Opel 1900 that will be driven regularly, the radial series are the natural comparison set because they share the same general size direction and blackwall presentation. For an Opel 1900 aimed at vintage style, the Silvertown Classic Bias Ply series brings the car toward a more traditional look and feel. Treat the series choice as part of the overall character of the car rather than as a minor branding detail.
Maintenance & Longevity
An Opel 1900 should be stored in a cool, dry, dark space with the tires protected from sunlight, electric motors, heaters, and sources of ozone. Keep the tires at the correct inflation pressure for the size and construction fitted, and avoid leaving the car on damp concrete for long periods if possible. Collector cars that sit for weeks or months at a time benefit from clean tires, stable temperature, and minimal exposure to chemical contamination. Those basics matter whether the Opel 1900 is on radial 165R13 tires or bias-ply 600-13 tires.
If the Opel 1900 is stored for extended periods, rolling it occasionally or using methods that reduce prolonged flat-spotting can help preserve ride quality. Bias-ply tires may show storage effects differently than radials, so regular visual checks are worthwhile. A little preparation before storage usually extends tire life more effectively than trying to correct problems after the car comes back into use.
Tires on an Opel 1900 should be inspected before each drive and more thoroughly at regular intervals even if the car sees low mileage. Check inflation, tread condition, cracking, bulges, irregular wear, and any signs that the tire is shifting on the rim or losing air over time. Collector cars often age their tires by time and storage conditions rather than by mileage alone. That is especially important when an Opel 1900 alternates between long storage periods and short weekend use.
A quick walk-around catches more problems than many owners expect, particularly on cars that are not driven daily. Look closely at sidewalls, valve stems, and the inner edges of the tires where age damage can be easier to miss. If the Opel 1900 is on bias-ply tires, also pay attention to tube-related issues and any changes in how the car tracks or steers after sitting.
Tires on an Opel 1900 should be replaced when age, cracking, hardening, bulging, impact damage, or structural concerns appear, even if the tread still looks deep. Collector-car tires often reach the end of their useful life through time and environment rather than mileage. A tire that looks presentable from a few feet away can still be unsuitable for road use once the rubber and internal structure have aged. Tread depth alone is not a reliable measure on a lightly used classic car.
If an Opel 1900 has been sitting on old tires for years, treat age as a primary service factor and have the tires evaluated before resuming road use. Replacement is especially prudent when the history of the tires is unclear or when the car has changed owners. The safest habit is to judge collector-car tires by condition and age as seriously as by appearance, particularly before any sustained highway driving.
Restoration & Authenticity
The Opel 1900 is associated here with both 165R13 radial sizing and 600-13 bias-ply sizing across the 1971 through 1975 years. The available series include radial offerings from Michelin and Dunlop, along with BFGoodrich Silvertown Classic Bias Ply choices in 600-13. That means more than one period-appropriate direction exists within the model range rather than a single one-size answer. The tire originally fitted to a specific Opel 1900 is best tied to the exact car’s configuration and restoration goal.
For a careful restoration, compare the car’s surviving wheel and tire evidence with factory literature, period photos, and marque-club guidance. A radial-equipped car and a bias-ply-equipped car can both look plausible within this model family, but they communicate different priorities. The closer you are trying to get to a specific original presentation, the more important it becomes to verify the exact configuration rather than choosing by size alone.
Yes, correct tire fitment can affect both the presentation and the judged authenticity of an Opel 1900. Size, construction type, sidewall style, and overall stance all influence whether the car looks right for its era and intended restoration standard. A 165R13 blackwall radial sends a different message than a 600-13 whitewall bias-ply tire even though both fit 13-inch rims. Judges and knowledgeable buyers often notice those differences quickly.
If your Opel 1900 is being prepared for higher-level showing, tire choice should be part of the restoration plan rather than a final cosmetic detail. Marque clubs, period brochures, and unrestored reference cars are useful when deciding whether the car should wear a blackwall radial look or a classic whitewall bias-ply look. Even on a driver, getting the tire style right improves the car’s overall coherence.
The listed Opel 1900 tire choices include blackwall, narrow whitewall, and wide whitewall sidewall styles. Blackwall appears with the 165R13 radial products, while the 600-13 bias-ply products are offered in 1.00-inch and 2.00-inch whitewall versions. That gives restorers more than one visual direction depending on whether the goal is a European road-car appearance or a more stylized period presentation. Sidewall choice is therefore part of the restoration story, not just a decorative preference.
A restoration that aims to preserve a cleaner import-car look will usually lean toward blackwall radials. A build with stronger period flair, local show history, or a classic Americanized presentation may justify one of the whitewall bias-ply options. The best answer comes from matching the sidewall to the exact personality of your Opel 1900 rather than assuming one style suits every car in the model line.
Safety & Road Use
Yes, Opel 1900 tires in the listed sizes can be suitable for public-road use when they are the correct size, the correct construction for the wheel, and in sound condition. The available range includes modern-style radial construction in 165R13 and classic bias-ply construction in 600-13. Safety depends on proper matching, age, inflation, and the overall mechanical condition of the car rather than on size designation alone. A fresh, correctly fitted tire is very different from an old tire that merely still holds air.
Before driving an Opel 1900 regularly, make sure all four tires match in construction type and are appropriate for the wheels fitted to the car. Also inspect brakes, steering, suspension, and wheel condition, because tire safety on a collector car is tied to the whole chassis system. Treat the tire choice as one part of making the car roadworthy, not as a substitute for a broader mechanical review.
Before driving an Opel 1900, check tire pressure, sidewall condition, tread condition, visible cracking, valve stems, and general wheel security. Confirm that all four tires are the same construction type, since the Opel 1900 is listed with both radial and bias-ply options and mixing them is not advisable. Look for any sign of age damage or long-storage deterioration, especially if the car has been parked for extended periods. These checks are basic but important on a vintage car that may not be driven every day.
A short inspection before each drive can prevent most avoidable problems, particularly on cars used for occasional pleasure driving. Pay attention to how the Opel 1900 feels in the first few miles, including steering response, vibration, and pull under braking. If anything changes suddenly from the car’s normal behavior, stop and inspect rather than assuming the issue will clear up as the tires warm.
Appropriate speed for an Opel 1900 depends on the tire construction, condition, age, and the overall mechanical health of the car. A sound radial 165R13 setup and a sound bias-ply 600-13 setup do not deliver the same road feel, and neither should be judged by tread appearance alone. On any collector car, old age, long storage, and uncertain service history should lower your speed expectations immediately. Mechanical sympathy matters more than trying to use the car like a modern commuter.
A prudent approach is to keep speeds moderate until you know the Opel 1900, its tires, and its chassis condition well. If the car is on bias-ply tires, leave additional margin for steering response and braking distance compared with radial expectations. For sustained higher-speed driving, the entire setup should be evaluated as a system, including tire age, balance, alignment, and the condition of suspension and steering components.