5.00-14 Tires

Also Written As: 50014, 5.00 14, 500-14, 500X14, 5.00X14, 500 14

The 5.00-14 tire is a vintage bias-ply size associated with classic passenger cars from the late 1940s through 1960. It belongs to the narrow numeric sizing tradition used before modern metric codes became standard, giving it strong relevance for restorations that aim to preserve original proportions and road feel. Its slim section width and tall vintage profile help maintain the period stance that many small postwar cars were designed around. Buyers should still confirm wheel condition, actual tube and wheel requirements, load needs, and physical clearance before use, since fitment depends on the complete wheel-and-tire system.

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5.00-14 Tire Dimensions & Specifications

The 5.00-14 measures 5.0 inches in section width and fits a 14.0-inch rim.

  • Section Width: 5.0 in (127.0 mm) — This is the dimension to check first against fender lips, suspension components, and brake clearance.
  • Rim Diameter: 14.0 in (355.6 mm) — This must match exactly — 5.00-14 cannot be mounted on any other rim diameter regardless of how other dimensions compare.
  • Construction: Bias Ply — Construction type affects ride feel, sidewall flex, handling behavior, and period-correctness for restoration.

Vehicles That Use 5.00-14

The 5.00-14 appears on vehicle listings from 1949 through 1960, including Morris, Riley, and Wolseley passenger cars. That spread places it squarely in the postwar small-car era, where narrow bias-ply sizes were common. Use those applications as a starting point rather than a guarantee, then compare wheel diameter, wheel condition, and clearance before treating the 5.00-14 as the right match for a specific car.

1946-19501 make · 1 model
1951-19551 make · 1 model
1956-19603 makes · 3 models

Frequently Asked Questions

Find answers to the most common questions about 5.00-14 tire sizing, fitment, compatibility, performance, maintenance, and replacement options.

Size Basics & Dimensions

What does the 5.00-14 mean?

The 5.00-14 is a numeric tire size in which 5.00 identifies the nominal section width in inches and 14 identifies the wheel diameter in inches. In practical terms, it is a 5.0-inch-wide vintage-format tire built to mount on a 14-inch wheel.

Modern P-metric sizing usually includes width in millimeters, an aspect ratio, construction type, and rim diameter all in one code. The 5.00-14 format is older and simpler, so it does not directly tell you the profile ratio or carcass type from the size marking alone. For a classic car owner, that means the size code gets you only part of the fitment picture, and the remaining details should be confirmed from the actual tire and wheel setup.

What size wheel does the 5.00-14 tire fit?

The 5.00-14 fits a 14.0-inch wheel, which is 355.6 millimeters in diameter. The wheel diameter must match exactly because tire beads are designed around that specific bead-seat measurement.

Wheel diameter is only one part of fitment, especially on an older car. Buyers should also confirm that the wheel is the correct type for the tire being used, that the rim is structurally sound, and that the full wheel-and-tire package clears suspension and bodywork. On collector vehicles, original-looking wheels may have been changed at some point, so measuring the wheel itself is often wiser than assuming the car still carries its factory setup.

How wide is the 5.00-14 tire?

The 5.00-14 has a section width of 5.0 inches, which is about 127.0 millimeters. Section width is the overall bulge of the inflated casing from sidewall to sidewall, not the width of the tread that actually touches the road.

Clearance problems are usually caused by section width rather than tread width, because the sidewall bulge sits closest to springs, inner fenders, and outer lips. On a narrow vintage car, a tire that looks only slightly wider on paper can still change how tightly everything fits. When comparing options, use section width first, then evaluate how sidewall shape and wheel width may alter the installed profile.

Is 5.00-14 the same as 5.00X14?

Yes, the 5.00-14 and 5.00X14 are commonly used as alternate written forms for the same basic vintage size. Variants such as 50014, 5.00 14, 500-14, and 500X14 are also common shorthand in catalogs, searches, and older references.

The key is to match the actual dimensions and wheel diameter rather than getting hung up on punctuation. Older tire sizes were often printed with dashes, spaces, or an X separator depending on the maker or publication. Even so, buyers should still inspect the complete sidewall marking and confirm the intended construction and wheel compatibility, because two tires written in similar ways are not automatically identical in build or use.

Does the 5.00-14 tire need a tube?

The 5.00-14 is commonly a tube-type fitment and is often set up with a tube. Tube use is not determined by size alone, though, because the actual requirement depends on the tire design, the wheel construction, and the condition of the wheel being used.

Many vintage wheels were built for tube service, and many older-style tires are still used that way today. A restorer should confirm whether the specific tire is intended for tube use, whether the wheel can safely seal without one, and whether the valve hole and rim profile are appropriate. On an older car, tube decisions should be made as part of the whole wheel-and-tire system rather than from the size code by itself.

Tire Compatibility & Fitment

Can the 5.00-14 be an original-style fitment for a classic passenger car?

Yes, the 5.00-14 is the kind of narrow bias-ply size commonly associated with classic passenger cars from the late 1940s through 1960. It suits owners who want to preserve a postwar look, maintain modest tread width, and keep the proportions expected on smaller cars of that period.

Original-style fitment still needs to be verified against the individual car. Trim level, wheel changes over the years, brake upgrades, and prior owner modifications can all affect what fits now. Factory manuals, period service literature, and the markings on the existing wheel are better guides than appearance alone. For a judged restoration, matching the size format and construction can matter almost as much as the raw dimensions.

Will the 5.00-14 fit any 14-inch wheel?

No, a matching 14-inch diameter is necessary, but it is not the only fitment requirement. The 5.00-14 must mount to the correct wheel type, and overall compatibility depends on the rim profile, wheel condition, and the tire's intended use with that wheel.

Older wheels deserve extra scrutiny because bead design, corrosion, previous repairs, and tube setup all affect safe installation. A 14-inch wheel from one era or application may not behave the same as another even when the diameter matches. Before mounting, inspect the rim carefully and compare the tire's service requirements with the wheel that will carry it, especially if the car has mixed-period parts or replacement wheels.

Why should buyers check clearance before using the 5.00-14?

The 5.00-14 is a narrow size at 5.0 inches of section width, but clearance still matters because vintage suspensions and wheel openings can be tight in ways that are not obvious at first glance. Steering lock, suspension travel, and wheel offset all influence whether the installed tire clears cleanly.

Collector cars often sit differently today than they did when new. Sagging springs, altered ride height, replacement wheels, and brake conversions can move the tire closer to fenders or chassis parts. Clearance checks should include both static fit and movement through steering and suspension travel. Even when the size is historically appropriate, the actual car in front of you should always make the final decision.

Performance & Driving Experience

How does the 5.00-14 bias-ply construction affect ride and steering feel?

A bias-ply 5.00-14 typically delivers the steering and ride character expected from a postwar car, with more sidewall influence and a more vintage response than a modern radial. Drivers often notice slower steering reaction, more road feel through the wheel, and a general sense that the tire is part of the car's original personality.

Vehicle setup has a big effect on how that feels in use. Suspension wear, alignment, steering-box condition, inflation maintenance, and tire age can make an authentic bias-ply setup feel either composed or unsettled. On a well-sorted classic, the period driving experience is part of the appeal. On a neglected chassis, the same tire can reveal every weakness already present in the car.

What kind of road manners should drivers expect from the 5.00-14 on modern streets?

The 5.00-14 is best understood as a vintage-size bias-ply tire used on cars designed around older tire behavior. On modern streets, it may track road grooves differently and respond less sharply than a later radial setup, especially during braking, lane changes, or uneven pavement transitions.

Driver expectations should match the era of the tire and the vehicle. Smooth steering inputs, sensible speeds, and a chassis in proper condition matter more with a vintage construction than they do on a modern commuter car. Before regular road use, inspect for age-related cracking, verify wheel condition, and make sure the car's suspension and alignment are in order so the tire can perform as intended.

Does the narrow 5.00-14 size change how a classic car feels on the road?

Yes, the narrow footprint of the 5.00-14 contributes to the light, delicate feel many small postwar cars are known for. Steering effort can feel modest at low speed, and the car often retains the visual and dynamic character that a wider substitute would change.

A wider replacement can alter more than appearance. It may increase steering effort, crowd suspension clearances, and give the car a stance that looks newer than the body was designed to carry. Keeping the original-width format helps preserve the relationship between tire, wheel opening, and steering geometry. For many vintage owners, that balance matters as much as outright grip.

Tire Brands & Quality

What should buyers look for in a quality 5.00-14 tire?

A good 5.00-14 should match the intended vintage use of the car, hold the correct narrow proportions, and be built with consistent casing quality. For a classic passenger car, the important questions are whether the tire preserves the original look, mounts correctly to the wheel being used, and suits the kind of driving the car actually sees.

Construction accuracy matters because this size is often chosen for authenticity as much as for simple fit. Buyers should examine sidewall markings carefully, confirm whether tube service is required, and avoid mixing unlike constructions within the same set unless a knowledgeable professional specifically approves the setup. On a restoration-grade car, consistency from tire to tire is part of the finished result, not a minor detail.

Why does construction quality matter so much in the 5.00-14 size?

Construction quality matters in the 5.00-14 because a bias-ply tire affects both how the car drives and how it sits visually. Small variations in casing shape, sidewall stiffness, or overall build consistency can show up as differences in steering feel, ride behavior, or the way the car fills its wheel openings.

Vintage sizes are usually selected with more intention than common modern replacements. A restorer may want original-style manners, while another owner may simply want a dependable classic-looking tire for occasional road use. In either case, the tire should be evaluated as part of a matched set, with attention to uniform dimensions, fresh condition, and suitability for the actual wheel-and-tire combination on the car.

Should all four 5.00-14 tires match on a classic car?

Yes, matching all four 5.00-14 tires is usually the best approach for a classic passenger car. Keeping the same size and construction on all corners promotes more predictable steering feel, ride balance, and visual consistency, especially on a vehicle originally designed around narrow bias-ply tires.

Mixing tire types can produce uneven behavior that is hard to diagnose later. Differences in sidewall stiffness, tread age, or overall profile may affect how the car reacts during braking, cornering, or on crowned roads. Owners restoring a car for authentic appearance also benefit from a matched set because the stance remains even from front to rear. Consistency is part of both drivability and presentation.

Maintenance & Longevity

How should the 5.00-14 be cared for on a collector car that is driven occasionally?

A 5.00-14 used on an occasional-driver classic should be inspected regularly even if tread wear is minimal. Bias-ply tires can age from time, heat, sunlight, ozone exposure, and long periods of inactivity, so cracks, bulges, flat spotting, and air loss deserve attention before every meaningful drive.

Storage conditions matter almost as much as mileage on a collector vehicle. Keep the car away from direct sun, electric motors, furnaces, and damp conditions that accelerate deterioration. If the car sits for extended periods, move it occasionally or support it in a way that reduces long-term stress on one contact patch. A low-mileage tire can still become an old tire, and age should be judged separately from tread depth.

How often should the 5.00-14 be inspected if the car is still in regular use?

A regularly driven car on 5.00-14 tires should get frequent visual checks for cuts, cracking, bulges, uneven wear, and gradual air loss. Bias-ply construction can make alignment or suspension problems show up in distinctive wear patterns, so routine inspection is one of the best ways to catch trouble before it becomes expensive or disruptive.

Road use places demands on an older-size tire that go beyond simple mileage accumulation. Check condition before long drives, after rough-road impacts, and any time the steering feel changes noticeably. A classic car with loose front-end parts or poor alignment can wear tires quickly even at modest speeds. Regular inspection ties tire life directly to the mechanical health of the vehicle carrying them.

How should tube use be maintained with the 5.00-14?

The 5.00-14 is commonly a tube-type fitment, so maintenance should include more than the outer tire alone. Air retention, valve stem condition, wheel surface condition, and any signs of chafing or heat-related issues in service all deserve attention when a tube is part of the assembly.

Service work on an older wheel should be done carefully because the tube, flap if used, tire casing, and rim all interact. Whenever the tire is dismounted, inspect the inside of the casing and the wheel for rust, burrs, or damage that could shorten tube life. Matching the tube setup to the actual tire and wheel is more important than assuming every 5.00-14 installation is identical.

Safety & Regulations

Is the 5.00-14 appropriate for modern road use?

The 5.00-14 can be used on modern roads when the complete wheel-and-tire system is in sound condition and the tire matches the vehicle's needs, but it should be approached as a vintage bias-ply fitment rather than as a modern all-purpose replacement. Condition, age, wheel compatibility, and the vehicle's mechanical state all influence how suitable it is for current driving.

Buyers should inspect the tire carefully before longer trips and keep expectations aligned with the period design. Steering, braking, and ride behavior may differ from newer radial-equipped vehicles, especially on interstates, grooved pavement, or in emergency maneuvers. Review the current sidewall markings, confirm the wheel setup, and consult a qualified tire professional if there is any doubt about the condition of the tire or wheel.

When should the 5.00-14 be replaced even if it still has tread?

The 5.00-14 should be replaced when age, cracking, bulges, repeated air loss, impact damage, or internal deterioration raise concerns, even if the remaining tread looks usable. On older collector cars, time and storage conditions often age a tire out before miles wear it down.

Tread depth tells only part of the story on a vintage-size tire. Sidewall checking, hardening rubber, and long periods of inactivity can reduce confidence well before the casing looks worn out in the usual sense. Owners should inspect all four tires closely, including the spare if it may be put into service, and make replacement decisions based on condition and age as well as visible tread.

Why does wheel condition matter so much with the 5.00-14?

Wheel condition matters with the 5.00-14 because this size is often used on older rims, and the tire's performance depends on the integrity of the whole assembly. Rust, pitting, bent flanges, poor previous repairs, or an incorrect wheel type can create mounting, sealing, or tube-related problems that have nothing to do with the tire's nominal size.

A careful inspection of the rim should happen before mounting and again whenever the tire is off the wheel. Vintage wheels may have lived through decades of corrosion, curb damage, and past service shortcuts. Confirm that the wheel diameter is correct, that the bead area is clean and sound, and that the wheel and tire are being used in a compatible tube or tubeless arrangement for that exact combination.

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