1984 Pontiac Fiero Tires

The 1984 Pontiac Fiero uses two different tire sizes, depending on sub-model. The Base and Sport use 185/80R13 radial tires, while the SE uses 215/60R14 radial tires. Both are primary fitments for this model year, but they are not interchangeable across the covered configurations without first confirming the wheel setup.

The practical difference is that the car must be matched to the correct sub-model and rim diameter before choosing a tire. A Base or Sport still on 13-inch wheels should be evaluated in 185/80R13, while an SE on 14-inch wheels should stay focused on 215/60R14. If the car has been changed over to different wheels, confirm the actual wheel diameter and width on the vehicle before selecting a replacement tire.

The 1984 Pontiac Fiero uses either a 13-inch or 14-inch rim, depending on sub-model. Base and Sport applications use the 185/80R13 size on a 13-inch rim, while the SE uses 215/60R14 on a 14-inch rim. Rim diameter is a central part of the fitment decision on this vehicle.

A tire size that ends in 13 requires a 13-inch wheel, and a tire size that ends in 14 requires a 14-inch wheel. Before ordering tires, check the wheel already on the car rather than relying only on the badge or trim name, especially if the Fiero has seen wheel swaps over the years. Diameter comes first, then width, then clearance and overall setup.

No. The 1984 Pontiac Fiero Base and Sport share the 185/80R13 radial size, but the SE uses 215/60R14. That means tire fitment is not uniform across the full model range, even though all of the primary fitments are radial tires.

That difference matters because the two sizes also use different wheel diameters and different product choices. The 13-inch fitment leans toward whitewall-style options, while the 14-inch fitment in this application appears with a raised white letter look. Identifying the exact sub-model is helpful, but checking the actual wheel on the car is even more important if the vehicle has been restored, modified, or assembled from mixed parts.

Start by confirming that the Fiero is a Base or Sport model still using 13-inch wheels, because 185/80R13 is the primary radial size for those applications. After size and wheel diameter are settled, compare the available sidewall treatments, brand preferences, and tire series, since this size includes both narrow whitewall and wide whitewall choices.

Rim-width compatibility is also worth checking before making a final selection. Available 185/80R13 products cover 5.00 to 6.50 inch rim-width applications where that specification is stated, and load figures vary slightly among products. On a collector car like a Fiero, the visual effect matters too, so the right tire may depend as much on the look you want as on the basic fitment itself.

Sidewall style varies by tire size on the 1984 Pontiac Fiero. In 185/80R13, available options include narrow whitewall and wide whitewall designs. In 215/60R14, the available option uses RWL, or raised white letters, giving the SE fitment a noticeably different visual character than the 13-inch applications.

That means sidewall choice is partly tied to the sub-model and wheel package rather than being a simple cosmetic add-on. A Base or Sport owner can lean toward a more traditional whitewall presentation, while an SE owner looking at the 14-inch size will see a sportier raised white letter appearance. The best choice depends on whether the goal is restoration-oriented style, period flavor, or a stronger performance-era look.

The available brands for the 1984 Pontiac Fiero include Maxxis, BFGoodrich, and Coker Classic. Brand coverage depends on tire size, with the 185/80R13 fitment showing options from all three, while the 215/60R14 fitment is represented here by BFGoodrich.

Brand is only one part of the decision, since each size also carries its own sidewall styles and tire series. The 13-inch choices include Maxxis Radial, Silvertown Radial, and Star Series offerings with whitewall treatments, while the 14-inch size appears as a Radial T/A with raised white letters. Compare the correct size first, then the visual style and wheel specifications that matter to your car.

A period-style choice starts with using the correct size for the sub-model. That means 185/80R13 for the Base and Sport, or 215/60R14 for the SE. Once the fitment is correct, the appearance decision shifts to the tire's sidewall treatment and overall character, since the available options range from whitewall presentations in the 13-inch size to raised white letters in the 14-inch size.

For a restoration-oriented car, visual balance matters as much as basic dimensions. A whitewall-equipped 185/80R13 can suit a more restrained or traditional presentation, while the 215/60R14 RWL look fits the sharper sport flavor many buyers want from an SE. If exact originality is the goal, compare the tire choice against marque-specific references and the vehicle's own history rather than relying only on general period style.

On the 1984 Pontiac Fiero, the primary fitments are radial tires, so the appearance question is less about bias-ply versus radial and more about the size and sidewall style chosen within the correct radial format. A 185/80R13 with a whitewall creates a very different visual impression from a 215/60R14 with raised white letters.

That difference can change how the car sits visually and how closely it matches the intended restoration theme. The smaller-wheel Base and Sport applications naturally point toward the whitewall-oriented options available in their size, while the SE's 14-inch fitment supports a more performance-minded look. For the best result, match the tire to the actual wheel package and the appearance you want the finished car to project.

Yes. The 1984 Pontiac Fiero already uses two different factory tire sizes tied to different wheel diameters, so wheel or suspension changes can complicate fitment quickly. Aftermarket wheels, altered ride height, or body and brake changes may affect clearance, steering sweep, and the range of tire sizes that can be used safely on the car.

A modified Fiero should be checked at the wheel itself rather than assumed from the original sub-model. Confirm wheel diameter and width first, then inspect clearance at the fender, inner wheelhouse, and steering components. Even when a tire size looks close on paper, the actual car may have less room than expected once offsets, springs, or other chassis changes enter the picture.

Start with the basics: confirm the tire size matches the sub-model and wheel diameter, and inspect the wheels for damage, rust, or bead-seat issues before mounting. Once the tires are installed, check inflation pressure, verify there is no interference through full steering travel, and make sure the car sits evenly without obvious contact points.

A 1984 Fiero that has spent long periods parked also deserves a broader once-over before regular road use. Look at suspension condition, steering response, and brake function, since new tires cannot compensate for worn chassis parts. It is also wise to recheck pressure after the first few drives and pay attention to any vibration, pull, rubbing, or unusual air loss that suggests another issue needs attention.

Maintain 1984 Pontiac Fiero tires by keeping them properly inflated, inspecting them regularly for cracking, cuts, bulges, and uneven tread wear, and watching for slow air loss. Collector-era cars often see limited use, so tire age and storage conditions matter just as much as mileage when judging whether a set is still fit for road duty.

Good storage habits help preserve both appearance and service life. Keep the Fiero away from prolonged sunlight, excess heat, standing moisture, and ozone sources such as electric motors or generators when possible. During the driving season, inspect the tires before longer trips and after periods of inactivity, especially if the car sits on the same spot for extended stretches between outings.