Franklin 11B Tires

Franklin 11B uses two listed tire sizes for 1927: 30X5.77 and 30X5. The available replacement products tied to 30X5 fit a 20-inch rim, which is the critical wheel dimension to confirm on the car before moving forward. Both size markings belong to the antique sizing era, so the numbers do not read like later numeric or metric tire codes.

Start by checking the sidewall marking on the car now, then confirm the actual wheel diameter at the rim. If the car is a restoration, compare the existing wheel and tire combination against period references for the specific chassis or body configuration. That step matters more than assuming every 1927 Franklin 11B used one identical casing.

On a Franklin 11B, 30X5 is an antique diameter-by-section tire size. The 30 refers to the tire’s approximate outside diameter in inches, while the 5 refers to section width. It does not mean the tire fits a 30-inch wheel; the available 30X5 products for Franklin 11B are built for a 20-inch rim.

That old-style marking is easy to misread if you are used to modern tire sizes, so the wheel itself always needs to be checked before selecting a replacement. Franklin 11B owners should also note that the available 30X5 replacements are bias-ply tires, which means the fitment should be planned as a period-style assembly rather than treated like a modern tubeless radial setup.

A 1927 Franklin 11B has 2 tire sizes listed because two antique size designations are associated with that same model year: 30X5.77 and 30X5. That is not a rim-diameter split, since the available replacement products for 30X5 use a 20-inch rim. It is better understood as a same-year fitment variation that needs to be matched to the specific car.

The practical takeaway is that year alone is not enough. Check the wheel diameter, inspect the size currently fitted, and review any restoration paperwork or marque guidance tied to the car’s exact configuration. That approach will do more to keep a Franklin 11B correct than choosing a tire solely from a year-based search.

Franklin 11B uses a 20-inch rim in the available replacement fitment tied to size 30X5. With antique sizes such as 30X5 and 30X5.77, the rim diameter is not shown by the first number in the size code. The wheel diameter has to be confirmed from the actual rim and the matching tire specification rather than inferred from the 30-inch overall tire diameter.

That distinction is one of the most common sources of ordering mistakes on late-1920s cars. Measure the wheel where the tire bead seats, not across the outer edge of the rim. If the car still carries older wheels of uncertain origin, verifying that 20-inch dimension before choosing a Franklin 11B tire is the safest way to avoid a mismatch.

The correct way to confirm a 1927 Franklin 11B tire size is to use three checks together: the size marking on the existing tire, the actual rim diameter, and the restoration intent for the car. Franklin 11B has both 30X5.77 and 30X5 associated with 1927, so one number alone is not always enough. The available 30X5 replacement fitment uses a 20-inch rim.

If the car is an older restoration, do not assume the current tire is correct simply because it fits the wheel. Compare the wheel diameter and the sidewall marking, then decide whether you want a period-looking blackwall or wide whitewall presentation where available. That process keeps the tire choice aligned with both fit and appearance.

Franklin 11B tire options include both blackwall and wide whitewall sidewall styles in the available 30X5 replacement products. The blackwall option appears in the Hartford Airplane tire, while the wide whitewall appears in the Firestone Classic Bias Ply offering. Both are bias-ply products sized for a 20-inch rim.

Sidewall choice affects the look of the car as much as the fitment itself. A blackwall generally suits a more restrained period presentation, while a wide whitewall creates a more dressed, show-oriented appearance that many owners prefer on upscale 1920s cars. Match the sidewall style to the way the Franklin 11B is being restored and displayed.

Franklin 11B replacement tires are available from two brands in the listed fitment: Hartford and Firestone. The Hartford offering is the Hartford Airplane tire in 30X5, while Firestone offers a 3.75 Inch Whitewall in 600-20 with 30X5 equivalency. Both are bias-ply tires for 20-inch applications.

Brand selection on a collector car usually comes down to the combination of appearance, period character, and the exact style of restoration you want. One Franklin 11B owner may prefer the blackwall look and aviation-era character of the Hartford option, while another may choose the Firestone whitewall for a more formal finished presentation.

A Franklin 11B should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, ozone sources, solvents, and standing moisture. Tire pressure should be maintained during storage, and the car should not be left for long periods on underinflated casings. On a pre-war car, preserving the shape of the tire is especially important because the carcass construction is more period-sensitive than a modern tire.

If the car will sit for months at a time, move it periodically or support it in a way that reduces prolonged flat spotting. Clean tires with mild soap and water rather than dressings that can dry or stain the rubber. A Franklin 11B that is stored carefully will usually keep its tires looking better and driving more consistently over time.

Tires on a Franklin 11B should be visually inspected before every drive and given a more thorough inspection at regular service intervals even if the car is used sparingly. Check for cracking, sidewall damage, tread separation, irregular wear, valve issues, and any sign that the tube or casing may be shifting. Because Franklin 11B belongs to the pre-war era, light use does not remove the need for close inspection.

Collector cars often age out their tires before they wear them out, so condition matters more than mileage alone. Include the spare in the inspection routine, since it may be just as old as the road tires. If anything looks questionable on a Franklin 11B tire, have it reviewed by a shop familiar with vintage bias-ply and tube-type assemblies.

Franklin 11B tires should be replaced when age, cracking, hardening, deformation, or casing damage begins to outweigh the apparent tread depth. Collector tires can look usable long after the rubber and internal structure have deteriorated. On a pre-war car, that age-related decline is often more important than miles driven.

Use tread depth as only one part of the decision, not the whole decision. A Franklin 11B that sees occasional tours, local shows, or short road use still depends on sound sidewalls and a stable carcass. If the tire’s age is uncertain or the rubber has become stiff and checked, replacement is the prudent move even when the tread still appears deep.

Franklin 11B is associated here with the antique sizes 30X5.77 and 30X5 for 1927, but multiple modern replacement interpretations can exist within that period sizing language. The available product range includes bias-ply offerings in different series, including Hartford Aero and Firestone Classic Bias Ply. That means the restoration question is less about one universally correct modern product and more about matching the right size, appearance, and construction style to the specific car.

For a judged Franklin 11B restoration, compare the car against period factory literature, surviving original cars, and recognized marque references. That is the best way to decide whether the car should wear a more restrained blackwall look or a more formal whitewall presentation. Correct tire choice can noticeably influence how authentic the finished car appears.

Correct tire fitment can affect both judging results and perceived value on a Franklin 11B because tires strongly influence stance, period character, and visual authenticity. An obviously incorrect diameter, sidewall treatment, or construction style can distract from an otherwise accurate restoration. On a pre-war car, knowledgeable judges and buyers tend to notice those details quickly.

The most valuable approach is to match the tire size and appearance to the specific restoration goal rather than choosing by convenience alone. A touring car prepared for events may prioritize proper profile and sidewall style, while a driver-grade Franklin 11B may accept a slightly different presentation. If the car is being judged, use club and marque references as the final authority.

Franklin 11B tire choices in the listed replacement range include blackwall and wide whitewall styles. Either can suit a 1920s restoration depending on the presentation you are aiming for, since upscale American cars of the period could appear with more formal or more restrained tire styling. The key is keeping the sidewall treatment consistent with the car’s overall trim and restoration character.

A blackwall often looks more understated and mechanical, while a wide whitewall gives a Franklin 11B a more elegant, show-field appearance. If the goal is authenticity, compare photographs, sales literature, and marque references for a car trimmed like yours. Sidewall style is a visual decision, but on a Franklin 11B it can change the whole impression of the finished restoration.

A properly fitted, correctly inflated Franklin 11B tire in sound condition can be used for the kind of careful public-road driving typically expected of a late-1920s collector car. The available replacements for 30X5 are bias-ply tires for 20-inch rims, so they should be treated as vintage-style driving equipment rather than modern high-speed touring tires. Safe use depends as much on condition and setup as on the size itself.

Keep expectations aligned with the age and design of the car. A Franklin 11B should be driven conservatively, with smooth steering inputs, longer braking distances, and regular checks of pressure and wheel hardware. Any car with uncertain wheel condition, old tubes, or long-stored tires should be inspected thoroughly before road use.

Before driving a Franklin 11B, inspect tire pressure, sidewall condition, tread condition, valve stems, wheel fasteners, and any signs of tube or bead movement. Confirm that all tires match the intended size and rim diameter for the car, particularly because Franklin 11B uses antique tire markings that can be misread. A brief walkaround before each outing is time well spent on a pre-war automobile.

Beyond the tires, check steering response, brake feel, and the general mechanical readiness of the car before heading onto public roads. Franklin 11B may be capable of regular hobby driving, but the whole chassis has to support that use safely. Tire problems often reveal themselves first through vibration, wandering, or sudden pressure loss, so do not ignore small warning signs.

A Franklin 11B running vintage-style bias-ply tires should be driven at moderate, mechanically sympathetic speeds that suit the car’s age, chassis condition, and tire construction. There is no single universal number that replaces judgment, because road surface, heat, inflation, wheel condition, and overall vehicle health all matter. The right pace is one that keeps the car stable, relaxed, and well within its braking and handling limits.

For most owners, that means treating a Franklin 11B as a touring collector car rather than a fast sustained-highway car. Build speed gradually, pay attention to how the car tracks and steers, and back off if the tires begin to feel unsettled. Conservative speed is part of preserving both the tires and the car.