1929 Reo Tire Fitment Guide

1929 Reo vehicles covered here use four tire sizes, all on the Flying Cloud: 30X6.20, 650-18, 30X6.00, and 6.00-18. The two numeric sizes, 650-18 and 6.00-18, mount on 18-inch rims, and the available 650-18 products fit rims 3.25 to 3.50 inches wide. The two 30-inch sizes follow an older diameter-by-section convention rather than the later numeric format.

That means a 1929 Reo buyer cannot rely on year and make alone, even though only one model appears here. Start by reading the size on the tire currently fitted or by measuring and confirming the wheel before choosing a replacement. The right match comes from the exact size and wheel on the car, not from assuming all Flying Cloud applications used one interchangeable tire.

On a 1929 Reo tire, 30X6.20 is an antique diameter-by-section size. The first number, 30, refers to the approximate overall tire diameter in inches, while 6.20 is the nominal section width. It is a bias-ply format from the period before later sizing systems became standard, and it does not describe the tire the same way a size like 650-18 does.

That distinction matters because antique sizes should not be treated as simple equivalents to later numeric sizes without checking the actual wheel and intended fitment. If your Flying Cloud carries 30X6.20 now, keep your search centered on that sizing convention first. It is the best starting point for preserving the car’s intended proportions and avoiding a mismatch between tire size expression and wheel setup.

On a 1929 Reo tire, 650-18 is a numeric bias-ply size. The 6.50 figure is the nominal section width in inches, written without a decimal in period style, and 18 is the rim diameter in inches. In the products available here, 650-18 comes in Firestone Balloon versions with either blackwall or wide whitewall styling.

That makes 650-18 easier for many buyers to interpret because the rim diameter is explicit. If your Flying Cloud uses an 18-inch wheel, this size may be one of the correct fitments, but it still should not be substituted casually for 6.00-18 or an antique 30-inch size. Confirm the exact tire size and the wheel width before deciding between appearance options within the 650-18 range.

For 1929 Reo applications shown here, sidewall choice appears in the 650-18 size, where Firestone Balloon tires are available in both blackwall and wide whitewall form. Both are bias-ply constructions, so the visual difference is the main distinction represented in the current offerings. The other listed 1929 Reo sizes are associated here with fitment only, without sidewall-style options shown alongside them.

A blackwall usually suits a more restrained, workmanlike pre-war appearance, while a wide whitewall creates a more formal and visually prominent look. The right choice depends on how your Flying Cloud is being finished and how closely you want the sidewall presentation to match the car’s intended character. If authenticity matters for a judged restoration, compare your intended look with marque references and period photography before settling on a sidewall treatment.

Firestone is the brand represented in the current 1929 Reo product range, specifically in the 650-18 size through the Firestone Balloon line. Those offerings are bias-ply tires with blackwall and wide whitewall versions. No additional brands are represented here across the listed 1929 Reo sizes.

For a buyer, that means the brand decision is less complicated than the fitment decision. The more important choice is identifying whether your Flying Cloud uses 650-18, 6.00-18, 30X6.00, or 30X6.20, then deciding what sidewall look best suits the car if you are working within 650-18. Firestone’s long-standing place in American vintage tire history also makes it a familiar option for period-minded restorations.

The two available 650-18 tires for a 1929 Reo are both Firestone Balloon bias-ply tires, but they differ in sidewall treatment and listed specifications. One is a 3.50-inch wide whitewall and the other is a blackwall; both fit 18-inch rims 3.25 to 3.50 inches wide. The blackwall version also carries a listed maximum load of 1205 pounds at 36 psi, and the whitewall and blackwall products differ in listed weight.

That means the choice is mainly about appearance first, with the same general period-style construction in either case. If your Flying Cloud is being restored for a specific visual presentation, the whitewall can change the car’s stance and character noticeably compared with a blackwall. Once the appearance is settled, confirm the wheel width and compare the individual product specifications rather than assuming every 650-18 is identical.

Rim-width guidance is available here for 1929 Reo in the 650-18 size, which fits rims 3.25 to 3.50 inches wide. The same size also uses an 18-inch rim diameter. The other listed 1929 Reo sizes are tied to Flying Cloud fitments, but no additional rim-width range is shown alongside them here.

That makes the wheel itself an important checkpoint before choosing a replacement tire. If your car is running 650-18, compare the wheel width against that 3.25-to-3.50-inch range. If your Flying Cloud has one of the other listed sizes, identify the tire size already fitted and inspect the wheel carefully rather than assuming the same rim-width guidance transfers across all four sizes.

Original 1929 Reo wheels can only be grouped with confidence where rim diameter matches. The listed 650-18 and 6.00-18 sizes both use 18-inch rims, so they share basic rim-diameter compatibility. The 30X6.20 and 30X6.00 fitments follow an antique overall-diameter sizing convention and should be treated as separate fitment paths rather than assumed matches for the 18-inch sizes.

In practical terms, that means a Flying Cloud owner should verify the wheel diameter before considering any size change. Even where the diameter matches, rim width still needs to suit the specific tire, and only 650-18 includes a width range here. Original wheels can often remain part of the plan on a restoration, but the safe approach is always to match the exact wheel to the exact tire size rather than mixing conventions.

A 1929 Reo should be stored in a cool, dry, dark space with the tires kept away from sunlight, electric motors, furnaces, welders, and other ozone sources that accelerate sidewall aging. Because every listed 1929 Reo size here is bias-ply, long static storage can encourage flat-spotting more readily than many radials. Keeping the car clean and the tires properly inflated also helps reduce casing stress during downtime.

For seasonal storage, move the car periodically so one section of the tread is not carrying the load for months at a time. If the car will sit for a long period, some owners use stands to reduce weight on the tires, but the suspension should still be supported correctly. A quick inspection before the first drive of the season is especially worthwhile on a pre-war car that may spend long stretches parked.

Tire life on a 1929 Reo is usually governed more by age than by mileage. Collector-car tires should be evaluated closely once they reach roughly five to seven years of service, and many owners treat about ten years as a point where replacement deserves serious consideration even if tread depth still looks good. The DOT date code on the tire is the best way to establish age when planning maintenance.

That matters because a lightly driven Flying Cloud can still have tires that look acceptable at a glance while the rubber and casing have aged beyond their best service life. Bias-ply tires on seldom-used cars can spend long periods exposed to heat cycles, garage conditions, and static loading. If the age is creeping upward, use inspection and age together, not tread depth alone, when deciding whether to continue using them.

Tires on a 1929 Reo should be checked before every drive and again before any longer outing. Look for sidewall cracking, cuts, bulges, irregular tread wear, and any pressure loss that suggests the tire is not holding air properly. Because these are pre-war fitments and all listed sizes are bias-ply, a careful visual inspection is part of normal operation rather than an occasional precaution.

A longer drive calls for an even closer look at the entire tire system, including valve stems, wheel condition, and the spare. Slow leaks and age cracking are easy to miss on a car that is only driven occasionally, and both can turn into larger problems once the car is warmed up on the road. Making tire inspection a routine habit is one of the simplest ways to protect both the car and the trip.

The 1929 Reo Flying Cloud belongs to a period when bias-ply construction was the normal factory-era tire type, and every size associated here with the car is a bias-ply fitment. The Flying Cloud is linked to four sizes in this range: 30X6.20, 650-18, 30X6.00, and 6.00-18. That points you toward period-correct construction first, while the exact original size should be matched to the car’s particular wheel and specification.

For restoration work, the safest approach is to confirm the size from surviving tires, wheel measurements, factory literature, or marque-club guidance rather than assuming one size covered every example. Sidewall appearance can matter almost as much as size on a finished pre-war car, especially if you are trying to recreate a specific delivery look. Bias-ply construction is the key authenticity baseline; exact size and sidewall treatment finish the picture.

Correct tire fitment matters on a 1929 Reo because judging standards for pre-war cars commonly take size, construction type, and sidewall appearance into account. A Flying Cloud shown with the wrong size family, an obviously incorrect sidewall style, or a later tire type that changes the car’s stance can draw unwanted attention in an authenticity-focused setting. Since all listed 1929 Reo fitments here are bias-ply, that construction type is the right starting point for a show-minded car.

The practical issue is that authenticity is rarely just about whether the tire physically fits the wheel. Judges and knowledgeable enthusiasts often notice whether the proportions, sidewall look, and period presentation suit the car’s era. If your goal is concours-level correctness, use club literature, period images, and event rules to refine the exact size and sidewall treatment instead of choosing solely by convenience or visual preference.

The available Firestone Balloon choices for the 1929 Reo are both 650-18 bias-ply tires, but one is built with a 3.50-inch whitewall and the other uses a blackwall sidewall. Both fit 18-inch rims 3.25 to 3.50 inches wide, while the blackwall version carries a listed load figure of 1205 pounds at 36 psi. Their listed weights are also different, which shows they are separate product executions rather than the same tire with only a cosmetic change.

For authenticity work, the deciding factor is usually which sidewall treatment best matches the way you want the Flying Cloud presented. A blackwall tends to look more restrained and utilitarian, while a whitewall adds visual emphasis that can dramatically affect the car’s overall impression. Compare the individual tire specifications, but let your restoration goal guide the final choice between those two period-style Firestone options.

1929 Reo tires can be suitable for road use when they are the correct size, in sound condition, properly inflated, and used within the expectations of a pre-war bias-ply vehicle. No speed rating is stated in the current 1929 Reo products shown here, so the tire choice should be paired with conservative operation and a realistic understanding of the car’s age, braking capability, chassis design, and steering behavior. On a car of this era, the overall mechanical condition often matters as much as the tire itself.

That means highway use is less about chasing a rating number and more about matching your driving style to the vehicle. A well-sorted Flying Cloud on fresh, correctly fitted bias-ply tires can be enjoyable on secondary roads and moderate-speed travel, but extended high-speed driving should be approached thoughtfully. Before longer trips, make tire condition part of a broader mechanical check that includes brakes, wheel bearings, steering, and suspension.

Inflation pressure for a 1929 Reo should follow the original vehicle recommendation first, then be checked against the tire manufacturer’s limits for the exact replacement tire you choose. The 650-18 blackwall product listed here carries a maximum load of 1205 pounds at 36 psi, which is a tire rating rather than a blanket inflation recommendation for every 1929 Reo size. The other listed sizes should not inherit that figure automatically.

The practical takeaway is to avoid using one pressure number across all four Flying Cloud sizes just because the car model is the same. Tire pressure affects ride, handling, wear, and casing stress, especially on a lightweight-to-moderate pre-war passenger car with bias-ply construction. Once the exact size is confirmed, compare the vehicle guidance and the tire maker’s specifications so you are setting pressure for the tire actually installed, not a neighboring size.

Before a longer drive in a 1929 Reo, inspect all tires for sidewall cracking, tread separation, punctures, bulges, uneven wear, and proper cold inflation pressure. Check the spare as carefully as the tires on the ground, and inspect the valve stems and wheel condition at the same time. On a car from 1929, tire readiness is only one part of roadworthiness, but it is one of the easiest places to catch trouble early.

A worthwhile pre-trip routine also includes confirming that the car tracks properly, that the steering feels predictable, and that no wheel or brake issue is developing. Bias-ply tires often communicate problems through pull, vibration, or unusual wear patterns, so take any new sensation seriously. A few minutes spent on a slow, methodical inspection can do more for trip confidence than simply checking whether the tread still looks deep.