1977 Mazda RX-3 Tires

The 1977 Mazda RX-3 uses two primary tire sizes: 155R13 in radial construction and 560-13 in bias-ply construction. Both sizes fit a 13-inch rim, so the choice is not about changing wheel diameter as much as choosing the tire type and overall presentation that suits the car.

That means the next step is confirming whether the RX-3 is staying with a traditional bias-ply setup or using a radial format. If the car still has original-style narrow wheels, wheel width should be checked before changing construction, and any car with aftermarket wheels or suspension changes deserves a closer clearance inspection.

The tire fitments used on the 1977 Mazda RX-3 are built around a 13-inch rim diameter. Both the 155R13 radial and the 560-13 bias-ply share that same wheel diameter, which helps keep the fitment conversation focused on construction style and wheel width rather than on a different rim size.

Rim diameter is only one part of the check, because wheel width still matters when choosing among available tires. The radial and bias-ply options here do not use the same width ranges, so the actual wheel on the car should be measured if there is any question about original versus modified wheels.

Yes. The 1977 Mazda RX-3 Base uses the same two primary tire choices found on this fitment page: 155R13 radial and 560-13 bias-ply. Both are 13-inch fitments, giving the Base model a choice between a more modern radial format and a more traditional bias-ply presentation.

That shared fitment makes sub-model identification simple, but the real decision still comes down to the car's wheel setup and intended look. An owner pursuing a road-use radial setup may lean toward 155R13, while a restoration-oriented build may start with 560-13 and then compare sidewall style and brand options.

560-13 is a bias-ply tire size for the 1977 Mazda RX-3. It uses the older numeric bias-ply sizing system and is available in traditional bias-ply tire lines, making it the vintage-style construction choice among the two primary fitments used on this car.

Choosing 560-13 usually points toward an owner who wants a more traditional look and feel on the car. Before staying with bias-ply or moving away from it, it helps to confirm wheel width, compare sidewall styling preferences, and think about whether the RX-3 is being restored for appearance, occasional driving, or broader road use.

Radial equivalents for 560-13 include 155R13 as an 80-series metric radial, P155/75R13 as a 75-series P-metric radial, and P155/70R13 as a 70-series P-metric radial. Those are the equivalent radial sizes associated with the original 560-13 bias-ply fitment for the 1977 Mazda RX-3.

Each equivalent keeps the same basic conversion path but uses a different sizing convention and profile family. A recommended rim-width range of 4 to 5 inches applies to these radial equivalents, so wheel width, tire clearance, and overall vehicle setup should be checked carefully before treating any one of them as the right alternative.

Start by confirming the actual wheel diameter and width on the car, then compare the intended radial size against the RX-3's available space at the fenders, suspension, and steering. For a 560-13 conversion, the radial equivalent choices include 155R13, P155/75R13, and P155/70R13, with a recommended rim-width range of 4 to 5 inches.

The practical issue is not just whether the tire shares a 13-inch rim diameter, but whether the entire package suits the wheel and vehicle setup. Any RX-3 with replacement wheels, altered ride height, or worn suspension components deserves extra scrutiny before changing construction from a bias-ply tire to a radial.

The main decision is whether the car should use the 155R13 radial fitment or the 560-13 bias-ply fitment. From there, compare the wheel's actual width, the tire's construction, and the overall goal for the car, whether that is period-style appearance, more traditional driving feel, or a radial setup for regular road use.

Brand, tire series, sidewall treatment, and load specification can all shape the final choice once the correct size path is established. A carefully restored RX-3 may call for a very different tire presentation than a driver-oriented car, so matching the tire to both the wheels and the vehicle's purpose matters more than picking by appearance alone.

The sidewall choices for the 1977 Mazda RX-3 depend on tire size and construction. The 155R13 radial options are blackwall tires, while the 560-13 bias-ply options include narrow whitewall and wide whitewall styles. That gives the RX-3 a clear visual split between a sporty radial look and a more traditional bias-ply presentation.

Sidewall style should be chosen after the correct size and construction are settled, not before. A blackwall radial tends to suit an owner focused on a cleaner driver-style presentation, while the whitewall bias-ply options are more aligned with period-style visual character on a compact seventies car.

The 1977 Mazda RX-3 has tire options from Michelin and Dunlop in the 155R13 radial size, and from BFGoodrich and Firestone in the 560-13 bias-ply size. Those brands cover both of the primary fitment directions used on this car, rather than simply offering multiple versions of the same construction.

That variety is most useful when the tire choice starts with the right size and construction. Once that is settled, brand can be considered alongside tire series, sidewall appearance, and wheel compatibility. Comparing the products this way helps keep the RX-3 matched to its intended use instead of choosing by name alone.

A period-style 1977 Mazda RX-3 usually starts with the 560-13 bias-ply fitment, because it preserves the older sizing format and traditional construction used on this car. That size also opens the door to classic visual treatments such as narrow whitewall or wide whitewall sidewalls, depending on the look being pursued.

A radial 155R13 can still be a sensible period-inspired option if the goal is a seventies-style road tire presentation rather than a strict bias-ply appearance. When exact originality matters, the final decision should be checked against marque-specific references, surviving car evidence, or restoration documentation for the individual vehicle.

Tire construction changes more than ride feel on a restored 1977 Mazda RX-3; it also changes the car's visual stance and character. A 560-13 bias-ply keeps the older numeric sizing format and a distinctly traditional presentation, while a 155R13 radial gives the car a more modernized period road-tire look.

Sidewall treatment also plays a major part in that result. Blackwall radials create a cleaner, sportier appearance, while narrow or wide whitewall bias-ply tires shift the car toward a more stylized vintage presentation. The right choice depends on whether the restoration favors historical atmosphere, road use, or a blend of both.

Yes. Any changes to wheels, ride height, suspension components, or body clearance can affect tire fitment on a 1977 Mazda RX-3, even when the tire is one of the correct primary sizes. That matters because both 155R13 radial and 560-13 bias-ply fit a 13-inch rim, but they do not share the same wheel-width considerations.

An RX-3 with aftermarket wheels deserves a closer check of wheel width, steering clearance, and fender space before a tire is selected. Lowering, replacement springs, or brake and suspension changes can also alter available room, so the actual car should always be inspected rather than assuming a stock fitment condition.

Before driving a 1977 Mazda RX-3 on new tires, inspect the wheels for correct diameter and width, make sure the beads seat properly, and verify that the tires clear suspension and bodywork through the steering range. Tire pressure should be set correctly, and lug hardware, wheel condition, and valve stems should all be checked.

A collector-era car also deserves a broader once-over before road use. Look for worn steering parts, weak shocks, uneven ride height, brake issues, and anything that could cause rubbing or unstable behavior once the new tires are installed. A short, cautious test drive is the best way to confirm the setup before regular use.

Tires on a collector 1977 Mazda RX-3 should be kept at the proper pressure, inspected regularly for cracking, bulges, cuts, tread wear, and air loss, and stored away from prolonged sunlight, moisture, and ozone sources whenever possible. Low-use cars especially need routine checks because age and storage conditions can matter as much as mileage.

It also helps to move the car periodically or reposition it to avoid long-term flat spotting during storage. Any sign of sidewall deterioration, persistent pressure loss, or uneven wear should be addressed before the car goes back on the road. Collector tires often age out before they wear out, so condition deserves regular attention.