1959 Renault Tire Fitment Guide

1959 Renault vehicles use four sizes across three model lines. The Renault CV and Renault Daughine use either 135R15 radial or 5.0-15 bias-ply, while the Renault Fregate uses either 185R15 radial or 640-15 bias-ply. Every size in this year-and-make group mounts on a 15-inch wheel, but the rim-width range changes by size where that information appears: 135R15 fits 3.50 to 4.50 inches, 185R15 fits roughly 4.5 to 6.50 inches depending on the tire, and 640-15 fits from 4.00 to 5.00 inches depending on brand and sidewall treatment.

The practical takeaway is that year and make alone are not enough for a 1959 Renault. You need to identify whether the car is a CV, Daughine, or Fregate first, then choose between the radial and bias-ply size family that belongs to that model. Once that is settled, compare the actual wheel width to the tire's approved range so the final selection matches both the car and the wheel.

On a 1959 Renault, 135R15 is a metric radial size. The 135 refers to nominal section width in millimeters, the R indicates radial construction, and the 15 is the wheel diameter in inches. In this older Euro-metric style, the aspect ratio is not written into the code, and the convention is to treat it as an 80-series profile. On 1959 Renault applications, 135R15 belongs to the CV and Daughine rather than the larger Fregate.

That decoding matters because 135R15 is not interchangeable with the larger Fregate sizes just because the wheel diameter is also 15 inches. It identifies a narrow small-car radial fitment, and product details can still vary within that size, including speed rating and whether the tire is marked tubeless. For a CV or Daughine owner, it is the radial path to start with before comparing brand, sidewall, and wheel-width compatibility.

No, 1959 Renault models do not all use the same tire size. The CV and Daughine share the smaller pair of 15-inch sizes, 135R15 and 5.0-15, while the Fregate uses a different and larger pair, 185R15 and 640-15. The common thread is wheel diameter, not overall tire size. That distinction reflects the difference between Renault's light economy cars and its larger sedan.

For buyers, that means a 15-inch marking on the wheel does not identify the correct tire by itself. A CV or Daughine owner should stay within the smaller size family, while a Fregate owner should remain in the larger one. If you are starting with a newly acquired car, confirm the model nameplate and compare the existing wheel and tire before deciding between radial and bias-ply construction.

For a 1959 Renault CV or 1959 Renault Daughine, the choice between 135R15 and 5.0-15 is mainly a choice between radial and bias-ply construction. The 135R15 is the metric radial option, while 5.0-15 is the numeric bias-ply option. Both belong to the same smaller Renault models, but they deliver a different character in how the car presents and responds on the road, especially at low collector-car speeds and in casual touring use.

Owners focused on period style and an era-correct restoration usually lean toward 5.0-15, while owners who plan to drive their 1959 Renault more regularly often begin with 135R15. Neither choice should be made by appearance alone, though. Check the wheel width, confirm the model, and make sure the tire you choose matches your goals for originality, road use, and the kind of driving the car will actually see.

1959 Renault tire sidewall choices vary by size and model. The 135R15 options for the CV and Daughine are blackwall radials, while the Fregate's 185R15 radial range includes blackwall, redline, and narrow whitewall versions. In bias-ply form, the Fregate's 640-15 choices include wide whitewall and narrow whitewall styling. That gives the larger Renault far more visual variety than the smaller cars.

A buyer choosing for authenticity should let the model and the look of the finished car guide the sidewall decision. Small European economy cars of the late 1950s are most naturally associated with modest blackwall presentation, while the larger Fregate can support more decorative sidewall treatments depending on market flavor and restoration intent. If show judging matters, compare your choice against period photos and marque-club guidance for your specific presentation goal.

1959 Renault vehicles are covered by Michelin, Firestone, Coker Classic, and BFGoodrich across the four sizes. The 135R15 small-car radial choices come from Michelin and Firestone, the 185R15 Fregate radial choices come from Coker Classic and Michelin, and the 640-15 Fregate bias-ply choices come from BFGoodrich and Firestone. That spread gives Renault owners access to both historically familiar European-style radial offerings and American-brand bias-ply alternatives in the larger size family.

Brand selection is easiest once the size and construction have already been narrowed down. Michelin is the strongest presence in the metric radial sizes, while Firestone and BFGoodrich are more prominent in the bias-ply and styling-oriented whitewall choices for the Fregate. Instead of starting with brand loyalty alone, start with the correct size for your model, then compare sidewall style, speed rating, and wheel-width compatibility within that size.

Rim-width requirements for 1959 Renault tires depend on the size. The 135R15 radial fits 3.50 to 4.50-inch rims, the 185R15 radial spans from about 4.5 to 6.50 inches depending on the exact tire, and the 640-15 bias-ply range runs from 4.00 to 5.00 inches depending on brand. Those ranges all share a 15-inch diameter, but they are not interchangeable width-wise across the full Renault lineup.

That matters most when a car has had wheels swapped at some point in its life. Before choosing a tire, measure or confirm the wheel width rather than assuming every 15-inch Renault wheel is the same. Staying inside the approved width range helps the tire keep the intended profile and contact patch, and it avoids forcing a small-car tire onto a wider wheel or a larger-car tire onto a narrow one.

Inner-tube requirements on 1959 Renault tires depend on the exact product and wheel, not only the nominal size. The 135R15 and 185R15 radial offerings include tubeless examples, while the bias-ply sizes shown here do not carry a tubeless marking in the size code. Tube use can also depend on whether the original wheel is designed to seal properly for tubeless service and on the tire manufacturer's construction details.

The safest approach is to inspect the wheel and verify the tire's sidewall marking before final assembly. A radial marked TL should still be paired with a wheel in suitable condition, and an older wheel with corrosion, pitting, or an unsuitable bead seat may change the decision. Treat tube fitment as a wheel-and-tire system question rather than assuming one answer applies to every 1959 Renault.

A 1959 Renault can use both tire sizes within its own model family because each pair shares a 15-inch rim diameter. The CV and Daughine can work within the 135R15 and 5.0-15 family, while the Fregate can work within the 185R15 and 640-15 family. The matching wheel diameter is the starting point, but wheel width still needs to be checked against the approved range for the tire you select.

That means a simple change from bias-ply to radial is often possible within the same model family, but it should never be assumed across all 1959 Renault models. The smaller-car wheel and the Fregate wheel serve different tire families even though both are 15-inch. Confirm the wheel width, inspect the bead area, and keep the tire choice matched to the specific Renault model rather than the year alone.

A stored 1959 Renault should be kept out of direct sunlight, away from electric motors and ozone sources, and on a dry surface that does not trap moisture around the tires. Proper inflation during storage matters, and occasional movement helps prevent one section of the tread from carrying the same load for months at a time. Bias-ply tires such as 5.0-15 and 640-15 are more prone to temporary flat-spotting during long static periods than the radial 135R15 and 185R15 options.

If the car will sit for an extended season, clean the tires, keep solvents and petroleum dressings off the rubber, and consider stands or periodic rolling to reduce stress on one contact patch. Collector cars often age their tires by time and environment more than mileage. Good storage practices preserve appearance, reduce sidewall stress, and make the first drive after a layup much more predictable.

Tires on a 1959 Renault are usually judged by age, condition, and storage history more than by tread wear alone. A sound collector-car rule is to begin evaluating tires closely at about five to seven years of age and to treat roughly ten years as a serious replacement point even if the tread still looks usable. The DOT date code on the tire is the reference for age, and an older tire can harden or crack long before it wears out in normal collector use.

That is especially important on lightly driven cars that spend long periods parked. A Renault that only sees local events may still need replacement because the rubber has aged, not because the tread is gone. Keep a record of installation dates, inspect for weather checking and hardening, and do not let low annual mileage create a false sense of security about an older set of tires.

Tires on a 1959 Renault should be inspected before every drive and again before any extended outing. Look for sidewall cracking, cuts, bulges, irregular tread wear, and pressure loss, and make sure the spare is in similar condition if you rely on it. Any setup that uses tubes also deserves attention to valve stems, stem grommets, and slow leaks that may not be obvious if the car sits between drives.

Frequent inspections matter because collector cars can develop age-related problems while parked, not only while driving. A tire that looked fine last season may show new checking, a shifting belt line, or a pressure issue after a long layup. Building a quick inspection routine before each drive is one of the simplest ways to protect the car, the wheel, and the rest of the suspension from avoidable tire trouble.

A 1959 Renault CV would have been associated with period European small-car sizing and, in its era, bias-ply construction was still the traditional baseline while early radial use was also part of the French market story. Within the available fitments for the 1959 Renault CV, the two relevant sizes are 135R15 and 5.0-15. That gives a restorer both a metric radial route and a numeric bias-ply route without stepping outside the known size family for the model.

For a highly exact restoration, the final choice should follow the market version of the car, surviving reference material, and the standard used by the event where the car will be judged. Sidewall treatment, construction type, and brand family can all affect how authentic the finished car appears. Marque clubs and factory literature are the best places to confirm market-specific details once the correct CV size family has been identified.

Correct tire fitment matters on a 1959 Renault because judges and knowledgeable enthusiasts often notice size family, construction type, and sidewall appearance before they notice smaller mechanical details. A CV or Daughine wearing a larger Fregate tire family would look visibly wrong, and a Fregate fitted with a sidewall style that clashes with the car's presentation can also stand out. Construction type can matter just as much as size if the event emphasizes originality.

For many restored cars, the main question is not whether the tire is good quality, but whether it matches the car's era and the owner's restoration intent. Bias-ply construction usually supports a stricter period presentation, while a radial may be accepted more readily on a driving-focused restoration. Before a judged event, compare your tires against period photos and the rules used by the relevant Renault club or concours organizer.

The 1959 Renault Fregate belongs to the larger Renault size family for that year, using 185R15 or 640-15 rather than the smaller CV and Daughine sizes. In period terms, 640-15 reflects the traditional bias-ply type expected on many late-1950s sedans, while 185R15 represents the radial path within the Fregate's correct fitment family. Both preserve the 15-inch wheel diameter that belongs to the model.

A restoration decision for a Fregate should take into account how the finished car will be used and how strict the originality target needs to be. Wide or narrow whitewall bias-ply choices can strongly shape the car's visual character, while radial alternatives open up different sidewall looks and speed ratings. For market-specific originality, especially on export or special-presentation cars, consult Renault historians or marque resources before finalizing the tire style.

1959 Renault tires can be suitable for highway use when the size, condition, and speed rating match the car and its intended driving. The 135R15 radial choices include Q and S speed ratings, while 185R15 radial choices include H at 130 mph and V at 149 mph. Bias-ply sizes for the 1959 Renault Fregate and the 5.0-15 option for the smaller cars are more about period construction than high-speed rating language. In real use, the condition of the tire and the age and capability of the car's brakes, steering, and suspension matter at least as much as the printed tire code.

For practical road use, think of the tire as one part of the whole vehicle system. A properly maintained 1959 Renault driven within sensible limits can use either construction appropriately, but an old or damaged tire should not be trusted simply because the tread looks decent. Match the car to the correct size family, stay within the tire's speed category, and inspect the rest of the chassis before expecting modern highway behavior from a late-1950s Renault.

Inflation pressure for a 1959 Renault should follow the vehicle's factory guidance first, then be checked against the tire's own rated pressure information where available. Among the tires here, 135R15 includes a maximum load figure of 780 pounds at 44 psi on one product, 185R15 includes 1355 pounds at 35 psi on one product, and 640-15 includes 1190 pounds at 32 psi on several versions with one 970-pound example also rated at 32 psi. Those figures are maximum load-and-pressure pairings, not universal running pressures for every Renault model.

Use those numbers carefully. They tell you how the tire is rated, but they do not automatically replace the vehicle maker's recommended operating pressure for ride, handling, and wear. Start with the factory recommendation for your exact model if you have it, then confirm that your chosen tire is being used within its published capacity. Avoid copying a pressure from one size or one product to another simply because the rim diameter is the same.

Before a longer drive in a 1959 Renault, inspect each tire for cracks, cuts, bulges, uneven wear, and stable air pressure, and do the same for the spare. Check valve stems closely, and pay extra attention if the car uses tube-type assembly because slow leaks and aging rubber parts can hide until the car is underway. A close look at the wheel itself is also worthwhile, especially on older steel rims that may have corrosion at the bead seat.

That tire inspection should be part of a broader pre-trip routine appropriate to a 1959 car. Brakes, steering play, suspension bushings, and wheel bearings deserve the same attention because a sound tire cannot compensate for a weak chassis or braking system. Taking ten extra minutes before departure often reveals the small issues that turn into roadside problems once the trip is no longer a short local drive.