The 1927 Franklin 11B comes from an era when Franklin stood apart for its air-cooled engineering and light, advanced construction, giving the car a distinct place in American motoring between the wars. Owners restoring or preserving one today usually face a tire decision that is as much about wheel type and period presentation as simple size matching. This model uses bias-ply tires, with 30X5.77 and 30x5 appearing in fitment for the 1927 Franklin 11B. That makes wheel confirmation especially important, since antique sizing conventions and beaded-edge style applications differ from later modern formats. A careful choice starts with the exact wheel setup already on the car.
Which Tire Size Is Right for The 1927 Franklin 11B
The 1927 Franklin 11B uses two primary tire sizes, and both are bias-ply fitments tied to the same covered sub-model. The key first step is confirming which wheel and tire system your car actually has, because these sizes represent different antique formats even though both relate to a 7-inch rim application in this fitment context. Once that is settled, the real decision becomes selecting the right period-style tire for the car's restoration goals and road use.
The 30x5 size also uses an antique diameter-by-section format, with 30 representing approximate overall diameter and 5 representing nominal section width. On the 1927 Franklin 11B, this is a bias-ply beaded-edge style fitment, which places it in a more specialized early-tire category than later clincher or modern drop-center applications. That distinction matters because the tire must suit the wheel design already on the vehicle, not just the printed size. Buyers usually evaluate this size with authenticity, wheel compatibility, and the car's intended use all in mind.
Sub-model fitment is straightforward here because the covered Franklin 11B configuration shares the same two primary tire sizes. Even so, checking the exact wheel setup remains important, since antique tire formats can point to different wheel and mounting requirements within the same vehicle line.
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1927 Franklin 11B 6 Cyl.
The 1927 Franklin 11B 6 Cyl. uses the same two bias-ply tire sizes found across this covered fitment, so the main question is not trim-level variation but wheel type. Tire selection should focus on matching the car's existing setup and deciding how closely the finished look should follow a traditional late-1920s presentation.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Frequently Asked Questions
Common 1927 Franklin 11B tire questions usually center on interpreting antique sizes, confirming the wheel setup, and understanding what those early bias-ply fitments mean for restoration, maintenance, and road use.
Tire Size & Fitment
What tire size fits a 1927 Franklin 11B?
The 1927 Franklin 11B uses two primary tire sizes: 30X5.77 and 30x5. Both are bias-ply fitments, and the covered 1927 Franklin 11B 6 Cyl. sub-model is associated with those same two sizes rather than a separate sub-model-specific tire size.
That means the next step is confirming which wheel setup is actually on the car before choosing a replacement. Antique sizes can belong to different mounting systems, so the printed size alone is not enough. A close check of the wheel type, rim details, and the tire already fitted to the vehicle helps prevent ordering a tire that matches the notation but not the wheel.
What size rim does a 1927 Franklin 11B use?
The 1927 Franklin 11B is associated here with a 7-inch rim diameter. That rim diameter is tied directly to the 30X5.77 fitment, and it is the key wheel dimension to confirm before replacing tires on an unrestored or long-stored car.
Rim diameter is only part of the picture on a 1920s vehicle. Early wheels can differ in profile and tire-mounting style even when the diameter sounds familiar, especially where beaded-edge applications are involved. Measuring the wheel, comparing it to the tire currently on the car, and checking for changes made over the years will give a more reliable fitment starting point.
What does 30x5 mean on a 1927 Franklin 11B?
On a 1927 Franklin 11B, 30x5 is an antique diameter-by-section tire size. The 30 refers to the tire's approximate overall diameter in inches, while the 5 refers to its nominal section width, also expressed in inches rather than modern metric sizing.
That format is very different from later alphanumeric, P-metric, or Euro-metric tire sizing, so it should be read in the context of early wheel and tire design. Since this fitment is also described as a beaded-edge style application, the buyer should verify that the wheel is meant for that style before choosing a replacement tire simply because the size code appears to match.
Choosing the Right Tire
What should I consider when choosing a 30X5.77 tire for a 1927 Franklin 11B?
Start by confirming that 30X5.77 is the actual tire system on your 1927 Franklin 11B, not just a similar-looking size noted from an older receipt or sidewall. This is a bias-ply antique diameter-by-section fitment, so the selection process is driven first by wheel compatibility and then by the kind of period-style presentation you want.
A car that has been restored, modified, or re-wheeled at some point may no longer match its earlier setup. Checking the wheel diameter, the tire currently mounted, and the mounting style will matter more than comparing the size code in isolation. Owners often balance authenticity, driving plans, and how closely they want the finished stance and appearance to reflect a late-1920s look.
How do I choose between the available 1927 Franklin 11B tire sizes?
Choosing between 30X5.77 and 30x5 comes down to identifying which wheel and tire system the car actually uses. Both sizes belong to the 1927 Franklin 11B fitment, but they are not simply two modern alternatives for the same wheel without further verification.
The practical difference is that antique tire sizing can reflect distinct wheel designs and mounting requirements. A careful inspection of the rim, the existing tire, and the car's restoration history is the safest starting point. Once the wheel type is confirmed, the correct size becomes much clearer, and the remaining decision is usually about preserving the car's traditional character for display and road use.
What rim-fitment details should I compare when choosing 1927 Franklin 11B tires?
The most important rim-fitment details for a 1927 Franklin 11B are wheel diameter and wheel type. The fitment centers on a 7-inch rim diameter, but with antique sizes such as 30X5.77 and 30x5, the tire's mounting style matters just as much as the nominal size itself.
Early cars often carry replacement wheels, mismatched spares, or older restorations that changed the original setup. Looking closely at the rim profile, the existing tire style, and how the tire seats to the wheel will help prevent costly mistakes. It is also wise to inspect for bent rims, corrosion, or damage before mounting new tires on a vehicle that may have spent long periods in storage.
Restoration & Appearance
Which tire should I choose for a period-style 1927 Franklin 11B?
For a period-style 1927 Franklin 11B, the starting point is staying within the vehicle's correct antique bias-ply fitment family, using either 30X5.77 or 30x5 as required by the wheel setup on the car. Those sizes align with the visual proportions and construction style expected on a late-1920s Franklin.
Appearance decisions only make sense after wheel compatibility has been settled, especially on an early car where tire type and wheel design are closely linked. Buyers focused on historical presentation usually compare the current restoration, surviving documentation, and marque-specific guidance before finalizing the exact tire choice. That approach helps preserve the car's period character without assuming every surviving Franklin wears the same wheel arrangement.
Does correct tire fitment matter for a 1927 Franklin 11B restoration?
Correct tire fitment matters a great deal on a 1927 Franklin 11B because the tire is a major visual and functional part of the restoration. On a car from this era, the right antique size and the right wheel relationship affect stance, proportions, and whether the finished car presents as an authentic pre-war automobile.
It also matters mechanically, since early tire systems are less forgiving of mismatch than later modern applications. A tire that resembles the right size but suits a different wheel style can create mounting and usability problems. Owners chasing a historically faithful result are usually best served by checking the wheel setup carefully and comparing it with reliable Franklin or period-restoration references before making a final decision.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1927 Franklin 11B?
Yes, modifications can affect tire fitment on a 1927 Franklin 11B, especially because early cars are often restored over many decades and may no longer retain their original wheel setup. Different wheels, brake work, suspension changes, or body repairs can all alter the tire and clearance picture even when the car still appears largely stock.
That is why the existing hardware should be inspected before choosing between 30X5.77 and 30x5. Wheel diameter, mounting style, and clearance at the fenders and steering components all deserve attention. A Franklin that has been reworked in the past may need fitment checked from the car outward, rather than assuming the current tires or wheels reflect the intended configuration.
What should I inspect before driving a 1927 Franklin 11B on new tires?
Before driving a 1927 Franklin 11B on new tires, inspect the wheels, valve hardware, wheel bearings, and the condition of the mounting surfaces as carefully as the tires themselves. On an early car, sound rims and proper mounting are just as important as fresh rubber, especially after long storage or an unfinished restoration.
It also helps to check steering travel, fender clearance, and general suspension condition before road use. Once the tires are mounted, confirm inflation, look for any sign of uneven seating, and take the first drive at moderate speed while paying attention to vibration or pull. A cautious shakedown is especially valuable on pre-war vehicles that may not have been driven regularly.
How should 30X5.77 or 30x5 tires on a collector 1927 Franklin 11B be maintained?
Tires on a collector 1927 Franklin 11B should be maintained with regular pressure checks, visual inspections, and careful storage practices. Even when tread wear is minimal, bias-ply tires on seldom-driven collector cars can age from time, sunlight, heat, ozone exposure, or extended stationary loading long before they look heavily used.
A routine inspection should include sidewall cracking, cuts, bulges, irregular wear, and any sign of air loss. It also helps to keep the car on a clean, dry surface and avoid long-term exposure to direct sunlight or electric-motor ozone sources. Because antique tires often see limited seasonal use, condition and age deserve as much attention as mileage before any serious drive.
