The 1974 Mazda RX-4 came from an era when compact imports were becoming more distinctive in both styling and engineering, and Mazda’s rotary-powered RX line gave the car a character all its own. For owners today, that personality matters just as much as keeping the stance and road manners in the right range. The 1974 Mazda RX-4 uses 13-inch radial tire fitments, with 195/70R13 and BR70-13 both applying across the covered configurations. That leaves room to think about sizing format, traditional appearance, and available sidewall treatment rather than chasing unrelated fitments. For restoration-minded driving, wheel condition and exact tire presentation deserve as much attention as the size itself.
Which Tire Size Is Right for The 1974 Mazda RX-4
The 1974 Mazda RX-4 uses two primary tire sizes, and both are radial constructions that fit a 13-inch rim. Because both the Sedan & Coupe and Wagon use the same size options, the main decision is not sub-model fitment but choosing the sizing format and tire style that best match the car’s appearance, wheel setup, and intended road use.
195/70R13 is a metric radial size: 195 is the nominal section width in millimeters, 70 is the aspect ratio, R identifies radial construction, and 13 is the wheel diameter in inches. On the 1974 Mazda RX-4, it represents a modern metric radial format while staying on the correct 13-inch rim diameter. Available product choice in this size includes the BFGoodrich Silvertown Radial with a narrow whitewall presentation. This size makes sense for an owner who wants a clearly modern metric designation while keeping attention on wheel compatibility, overall proportions, and a restoration-friendly look.
BR70-13 is an alphanumeric radial size, using a letter-based size class, a 70-series profile designation, and a 13-inch rim diameter. It keeps the radial construction of the 1974 Mazda RX-4 fitment but expresses the sizing in a more vintage-style alphanumeric format familiar to many period applications. That can matter to owners who prefer a tire marking style that looks more at home on a 1970s car. It is worth evaluating when appearance is part of the decision and the goal is to stay with the correct rim diameter while preserving an era-appropriate visual character.
Tire fitment is straightforward across the covered 1974 Mazda RX-4 sub-models because both use the same two radial size options on 13-inch rims. Checking the exact sub-model still helps confirm the car’s present wheel setup, especially if it has been altered over the years.
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1974 Mazda RX-4 Sedan & Coupe
The 1974 Mazda RX-4 Sedan & Coupe uses the same pair of 13-inch radial fitments found across this application, so the focus is on selecting the right size format rather than chasing a different sub-model-only tire. That makes the decision more about appearance, wheel compatibility, and whether a modern metric or vintage-style alphanumeric radial better suits the car.
The 1974 Mazda RX-4 Wagon shares the same 13-inch radial tire fitment choices as the Sedan & Coupe, keeping selection consistent across the covered RX-4 range. For wagon owners, the practical next step is comparing the car’s actual wheels and the desired look before choosing between the available radial sizing styles.
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 1974 Mazda RX-4 Tires for Sale
Available 1974 Mazda RX-4 tire choices center on 195/70R13 radial fitment, with BFGoodrich offered in the Silvertown Radial series. The current product mix emphasizes a narrow whitewall appearance, radial construction, and compatibility with 13-inch wheels in the appropriate rim-width range.
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Radial Tires
BFGoodrich Silvertown Radial | 7/16 Inch Whitewall | 195/70R13
These 1974 Mazda RX-4 tire FAQs focus on the two correct 13-inch radial sizes, sub-model fitment, sizing format, available product style, and the wheel, maintenance, and road-use checks that matter before putting the car back into service.
Tire Size & Fitment
What tire size fits a 1974 Mazda RX-4?
The 1974 Mazda RX-4 uses two primary tire sizes: 195/70R13 and BR70-13. Both are radial tire fitments and both use a 13-inch rim diameter, so the choice is between two size-designation formats rather than a change from one wheel diameter to another.
That means the first step is confirming which size format best matches the car and its current wheels. Sedan & Coupe and Wagon applications share these same size options, but any RX-4 with replacement wheels, altered suspension, or previous tire substitutions should be checked carefully before settling on a tire.
What size rim does a 1974 Mazda RX-4 use?
The tire fitments for the 1974 Mazda RX-4 use a 13-inch rim diameter. Both 195/70R13 and BR70-13 are built around that same wheel diameter, which keeps rim-size confirmation simple compared with vehicles that used multiple wheel sizes across a single model year.
Rim diameter is only part of the fitment picture, so it is still important to verify the wheel width and the car’s actual setup before installing tires. A 13-inch wheel that is too narrow, too wide, or changed in offset can affect how the tire sits and whether it clears properly during driving and steering.
Do all 1974 Mazda RX-4 sub-models use the same tire size?
Yes. The covered 1974 Mazda RX-4 Sedan & Coupe and the 1974 Mazda RX-4 Wagon both use the same two radial tire size options: 195/70R13 and BR70-13. There is no sub-model split here that forces one body style into a different primary wheel diameter or tire construction.
That shared fitment simplifies shopping, but it does not remove the need to inspect the car itself. A long-owned RX-4 may have had wheels changed at some point, and that matters more than the badge on the body when it is time to confirm tire size, wheel width, and overall compatibility.
Choosing the Right Tire
What should I consider when choosing a 195/70R13 tire for a 1974 Mazda RX-4?
Start with the correct 13-inch fitment, then compare how the tire’s style aligns with the car’s intended use and appearance. In 195/70R13, the available RX-4 product choice includes a BFGoodrich Silvertown Radial with radial construction and a narrow whitewall sidewall treatment.
That makes the decision less about finding any tire in the size and more about whether the tire complements the car visually and suits the wheel dimensions already on it. Rim-width compatibility, load capacity, and the kind of road use the car sees should all be checked before final selection.
What sidewall styles are available for 1974 Mazda RX-4 tires?
For the available 195/70R13 RX-4 product offering, the sidewall style is a narrow whitewall. That gives the car a more traditional presentation than a plain blackwall and can be especially appealing on a 1970s import where period-style details play a big role in the finished look.
Sidewall choice should be matched to the way the car is being presented rather than treated as a purely cosmetic afterthought. A narrow whitewall can support a more restoration-oriented appearance, but owners should still confirm the tire size, wheel fit, and overall proportions before making the visual decision final.
What brands offer tires for the 1974 Mazda RX-4?
The current product selection for the 1974 Mazda RX-4 includes BFGoodrich in 195/70R13. That tire is part of the Silvertown Radial series, so the brand and series combination is part of what distinguishes the available option for owners focused on this exact fitment.
Brand alone should not decide the purchase. It is better to compare the tire’s size, construction, sidewall style, rim-width suitability, and how well it matches the character of the car. On a collector RX-4, appearance and fitment often matter just as much as the name molded into the sidewall.
Restoration & Appearance
Which tire should I choose for a period-style 1974 Mazda RX-4?
A period-style 1974 Mazda RX-4 usually starts with staying in one of the correct 13-inch radial fitments, either 195/70R13 or BR70-13. The key difference is presentation: 195/70R13 uses a modern metric format, while BR70-13 carries a more vintage-style alphanumeric look on the sidewall.
That makes the choice as much about visual character as about fitment. Owners restoring the car toward a specific historical presentation should compare tire markings, sidewall treatment, and wheel setup carefully, then cross-check the result against marque references or period photos if exact appearance matters.
How does tire construction affect the appearance of a restored 1974 Mazda RX-4?
On the 1974 Mazda RX-4, the primary fitments are radial tires, so the visual difference comes more from size format and sidewall treatment than from switching between bias-ply and radial construction. A metric radial marking reads more modern, while an alphanumeric radial can look more in keeping with the period.
Sidewall style also shapes the finished result. A narrow whitewall changes the car’s presentation noticeably even when the basic size remains correct. For a restoration-oriented RX-4, the best approach is to balance accurate proportions, wheel fit, and the era-appropriate look the owner wants the car to carry.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1974 Mazda RX-4?
Yes. Even though the 1974 Mazda RX-4 uses 13-inch radial tire fitments, wheel and suspension changes can still alter what works safely on the car. Aftermarket wheels, offset changes, lowering, worn springs, or body modifications can all affect clearance and the way a tire sits in the wheel opening.
That is why a modified RX-4 should be measured rather than assumed to match stock fitment. Check the actual wheel diameter and width, look at steering and fender clearance, and confirm that the tire’s dimensions and profile suit the car’s present configuration before putting miles on it.
What should I inspect before driving a 1974 Mazda RX-4 on new tires?
Before driving a 1974 Mazda RX-4 on new tires, inspect the wheels for damage or corrosion, verify that the tire size matches the intended 13-inch fitment, and confirm inflation pressure, tread condition, and proper seating on the rim. It also helps to look over valve stems and check for any immediate air loss.
A collector car deserves a broader inspection than the tires alone. Steering components, suspension condition, brake function, and visible clearance around the tires should all be reviewed before normal road use. That extra step matters on cars that have spent long periods parked or have changed hands over time.
How should 195/70R13 tires on a collector 1974 Mazda RX-4 be maintained?
195/70R13 tires on a collector 1974 Mazda RX-4 should be kept properly inflated, inspected regularly for cracking, cuts, bulges, uneven wear, and air loss, and protected from prolonged storage conditions that accelerate aging. Heat, direct sunlight, excess moisture, and nearby ozone sources can all shorten tire life.
Regular movement and periodic inspection are especially important on a low-mileage car that may look fine but sit for long intervals. It is smart to review the tires before each driving season and again before longer trips, paying attention to both visible condition and the car’s overall wheel-and-suspension setup.
