Nissan SPL Tires

Nissan SPL fitments in this year range include four tire sizes: 155R13, 560-13, 145R14, and 520-14. The 155R13 radial and 560-13 bias-ply sizes are listed from 1960 through 1964 and use 13-inch rims. The 145R14 radial and 520-14 bias-ply sizes are listed for 1961 and 1962 and use 14-inch rims.

That means the model name alone is not enough to choose correctly. Start by checking the production year, then confirm whether the car actually has 13-inch or 14-inch wheels, and only then decide between period-style bias-ply construction and radial construction. On a restored or modified Nissan SPL, wheel swaps over the decades are common enough that the wheel diameter on the car matters more than assumptions.

A 560-13 tire for a Nissan SPL uses an older numeric bias-ply size code. The 5.60 indicates the nominal section width in inches, while the 13 indicates the wheel diameter in inches. Available products in this size are bias-ply tires intended for 13-inch rims, with listed rim width ranges running from 3.50 to 4.50 inches depending on the product.

That size is the period-style choice when a Nissan SPL carries 13-inch wheels and the owner wants the look and behavior of a classic bias-ply tire. Because it is a bias-ply fitment in this application, inner tubes are part of the setup. It is also worth checking the wheel width against the tire's recommended range rather than choosing only by the size stamped on the sidewall.

A 1961 Nissan SPL can show four listed sizes because that year includes both 13-inch and 14-inch fitments, and each wheel diameter appears in both radial and bias-ply forms. The 13-inch options are 155R13 and 560-13, while the 14-inch options are 145R14 and 520-14. The same pattern appears in 1962.

The practical takeaway is that year alone does not settle the question for a 1961 Nissan SPL. You need to identify the wheel diameter first, then decide whether the car is being set up for period-correct bias-ply appearance or for radial-road manners. If the car has been restored, imported, or updated at some point in its life, verify the wheel size directly instead of relying on memory or paperwork.

Nissan SPL uses both 13-inch and 14-inch rim diameters in this 1960 to 1964 range. The 13-inch fitments are 155R13 and 560-13, while the 14-inch fitments are 145R14 and 520-14. The 14-inch wheel fitments appear in 1961 and 1962, so those are the years where the wheel diameter needs the closest attention.

The safest approach is to treat the wheel diameter as the first fitment checkpoint, ahead of sidewall style or brand preference. Measure the wheel or confirm the stamping on the existing tire before choosing. Once the wheel diameter is settled, the remaining choice becomes much easier: radial or bias-ply, then the sidewall style and series that best fit the car's intended use.

Nissan SPL owners in this year range can choose between bias-ply and radial construction, depending on the wheel diameter and the character they want from the car. The bias-ply options are 560-13 and 520-14, while the radial options are 155R13 and 145R14. That gives Nissan SPL buyers a legitimate choice between period-style construction and later driving manners.

Bias-ply tires suit a more historically faithful presentation and steering feel, especially on a restoration that aims to preserve the car's early-1960s personality. Radials generally appeal to drivers who want more familiar response for regular road use. The decision should match the car's purpose first, then the actual wheel diameter, because a Nissan SPL cannot simply interchange all four sizes without regard to rim size.

Yes, radial tires can noticeably change how a Nissan SPL feels on the road compared with bias-ply tires. In the sizes offered here, the radial choices are the 13-inch 155R13 and the 14-inch 145R14, while the bias-ply alternatives are 560-13 and 520-14. The construction difference is often as significant as the size difference in shaping the car's steering response and road feel.

Owners who drive their Nissan SPL more regularly often prefer the more modern behavior of radials, while owners pursuing a more period-correct experience often stay with bias-ply construction. Either route can be appropriate when matched to the correct wheel diameter. What matters most is making the choice intentionally, so the car's handling feel, appearance, and use all point in the same direction.

A Nissan SPL should be fitted as a complete set of one construction type rather than mixing bias-ply and radial tires on the same car. This model range has both constructions available, but they are different in behavior as well as in size convention. Mixing them can produce uneven response and make it harder to understand how the car will react at speed or during braking.

If a Nissan SPL currently has a mixed set, treat that as a temporary condition to correct rather than a final setup. Choose the proper wheel diameter first, then fit four matching tires in either the radial size or the bias-ply size that corresponds to those wheels. Keeping the construction consistent is one of the simplest ways to make a light vintage sports car feel predictable.

A 1961 Nissan SPL is the year that needs the most careful checking because it can use either 13-inch or 14-inch fitments, in both radial and bias-ply forms. The 13-inch sizes are 155R13 and 560-13, while the 14-inch sizes are 145R14 and 520-14. That means the correct answer starts with the wheel on the car, not just the calendar year.

Begin by confirming the wheel diameter, then compare the tire size already on the car with the wheel width where that information is available. After that, decide whether the car is being set up for restoration accuracy or for more modern road behavior. Looking at period photographs, service records, and marque-club knowledge can help settle close calls on a Nissan SPL that has changed hands or been modified.

Nissan SPL tires in this range are available in blackwall, narrow whitewall, and wide whitewall styles. The radial sizes 155R13 and 145R14 are offered in blackwall form, while the bias-ply 560-13 appears in both narrow and wide whitewall versions. The 520-14 bias-ply offerings shown here use narrow whitewalls.

Sidewall style has a strong effect on the finished look of a Nissan SPL, especially because it is a small sports car with a lot of tire visible in profile. Blackwall generally suits a cleaner sports-car presentation, while whitewalls can push the look toward a more period American-market appearance. The right choice depends on the car's restoration goal rather than the tire size alone.

Nissan SPL tire options here come from Michelin, Dunlop, BFGoodrich, Firestone, Camac, and Premium Sport. Michelin and Dunlop cover the 155R13 radial size, Firestone and Camac cover the 145R14 radial size, BFGoodrich and Firestone appear in 560-13 bias-ply, and Premium Sport appears in 520-14 bias-ply. That spread gives the Nissan SPL owner several distinct approaches within the listed sizes.

Brand choice should come after the basic fitment questions are settled. Once the wheel diameter, size, and construction type are correct, the brand and series can help you refine appearance and intended use. On a Nissan SPL, that usually means deciding whether the car is headed toward a restoration-oriented bias-ply setup, a radial road setup, or a very specific sidewall look.

Nissan SPL products here span several tire series, including Michelin XAS-FF, SP Sport Aquajet, Silvertown Classic Bias Ply, Firestone Classic Bias Ply, F560 Radial, BN313 Radial, and Premium Sport Lowrider. The main differences are construction type and style: some are radial touring-style offerings, while others are classic bias-ply designs with whitewall treatments. Those series distinctions matter because they shape both the look and the driving character of the finished car.

A restoration-focused Nissan SPL often points toward one of the classic bias-ply series in the correct size, especially when whitewall presentation is part of the goal. A road-driven car may point toward one of the radial series if the wheel diameter matches. It helps to decide first whether authenticity, drivability, or a custom visual style carries the most weight, and then choose the series that fits that priority.

A Nissan SPL stores best in a cool, dry, dark space with the tires clean and inflated to a stable maintenance pressure appropriate to the tire type. Sunlight, heat, and long exposure to moisture are hard on both radial and bias-ply collector tires. If the car will sit for extended periods, keeping it out of direct weather and away from ozone sources such as electric motors helps preserve the rubber.

Many owners also reduce stress on the tires by moving the Nissan SPL periodically so it does not rest on the same contact patch for months at a time. If the car is part of a long-term collection, it is wise to inspect sidewalls before and after storage seasons. A little attention during storage does more for tire life than waiting until the next driving event to check them.

Tires on a Nissan SPL should be inspected before each outing and more thoroughly several times a year, even if the car is driven only occasionally. Collector cars can hide aging issues because they accumulate so few miles, and a low-use tire can still deteriorate from time, storage conditions, and repeated heat cycles. That applies equally to radial and bias-ply tires.

A careful inspection routine should include pressure, sidewall cracking, tread separation signs, uneven wear, and any changes in how the Nissan SPL steers or rides. Cars that have sat through a season deserve extra attention before returning to the road. If anything looks questionable, especially on an older bias-ply setup, have the tires evaluated before assuming they are ready for use just because the tread still appears deep.

A Nissan SPL can need new tires long before the tread is worn out because collector tires often age out before they wear out. Sidewall checking, hardening rubber, vibration, flat spotting that does not clear, or any sign of internal separation are stronger reasons for replacement than tread depth alone on a low-mileage vintage car. Time and condition matter more than mileage for many Nissan SPLs.

The practical rule is to treat tire age and physical condition as ongoing maintenance items rather than waiting for obvious failure. If the Nissan SPL has been stored for years, returned to service after a long restoration, or is carrying older specialty tires, a fresh inspection should come before any extended drive. Collector tires reward caution, especially on a light roadster that depends heavily on predictable steering response.

Nissan SPL fitments in this 1960 to 1964 group include both bias-ply and radial-form sizes, specifically 560-13 and 155R13 throughout the range, plus 520-14 and 145R14 in 1961 and 1962. The available series include classic bias-ply lines as well as radial lines. That mix shows that more than one type of tire can be relevant to a Nissan SPL, depending on year and configuration.

For a restoration, the best path is to match the actual car's wheel diameter and compare it with factory literature, period photos, and marque-club knowledge for the specific year. A Nissan SPL built for concours presentation may call for a different choice than one restored as a sympathetic road car. The closer the project gets to judged authenticity, the more important those references become.

Correct tire fitment can absolutely affect how a Nissan SPL is perceived in both judged settings and the collector market. The right wheel diameter, the right size family, and an era-appropriate construction all contribute to whether the car looks coherent and properly finished. On a small roadster, tire profile and sidewall treatment are especially visible, so wrong proportions stand out quickly.

That does not mean every Nissan SPL needs the same tire choice. A preservation-minded restoration may benefit from period-style bias-ply proportions, while a road-focused example may prioritize radial manners. What matters is consistency between the car's purpose and the tire choice, with club judging standards and marque specialists serving as the best reference when originality is part of the goal.

Nissan SPL tire options here include blackwall, narrow whitewall, and wide whitewall styles, so the correct restoration look depends on the particular presentation you are aiming for. Blackwall is available in the radial sizes, while the bias-ply sizes include both narrow and wide whitewall treatments. That gives restorers room to tune the car's appearance without stepping outside the listed size families.

A sportier, more understated Nissan SPL usually looks most natural on blackwalls, especially when the goal is a clean early-1960s roadster stance. Whitewalls can be appropriate when the car is being finished in a more market-specific or period-themed style. The best answer comes from period photos of similar cars and from deciding whether the project is leaning toward authenticity, personalization, or judged presentation.

A Nissan SPL can be driven on public roads with the correct tire size, proper condition, and a complete inspection of the car, but suitability depends on matching the tire to the wheel diameter and intended use. This model range includes both radial and bias-ply choices, and each can be appropriate when used as a full matching set in sound condition. Condition matters as much as size on a vintage roadster.

Before regular road use, make sure the Nissan SPL has fresh pressures, no visible tire damage, and no age-related concerns that could affect stability. A car that has been dormant, newly restored, or recently acquired should be treated cautiously until tires, wheels, brakes, and steering are all checked together. The tire choice is only one part of road safety, but it is a foundational one.

Before driving a Nissan SPL, check tire pressure, visible sidewall condition, tread condition, wheel security, and whether all four tires are the same size family and construction type. On this model, also confirm that the tires actually match the wheel diameter, because both 13-inch and 14-inch fitments appear in the range. If the car runs bias-ply tires, tube condition is also part of the inspection picture.

A brief walkaround before each outing can catch most of the issues that affect a lightly used collector car. Pay attention to new vibrations, steering pull, or a sudden change in how the Nissan SPL tracks on the road, since those can point to pressure loss or tire aging. Small sports cars communicate problems quickly, which is helpful if you listen to what the car is telling you.

A sensible speed for a Nissan SPL depends less on the badge on the car than on the tire type, age, condition, and overall mechanical state. A fresh, properly fitted radial setup may support more relaxed modern-road use than a period-style bias-ply setup, but either way the car should be driven within the limits of a lightweight early-1960s roadster. Old or questionable tires should always bring speeds down sharply.

The practical rule is to build speed gradually and only after the Nissan SPL has proven stable, smooth, and predictable on lower-speed roads. Collector cars reward restraint, especially when their chassis, steering, and tire technology come from another era. If the goal is preserving the car and enjoying it safely, conservative speeds and regular inspections are far better than asking an old tire to perform like a modern one.