Graham 116 Supercharger Tires
Graham 116 Supercharger was part of Graham's late prewar push to combine streamlined styling with supercharged performance, and the 1937 model sits in one of the more distinctive corners of American collector-car history. A surviving Graham 116 Supercharger can be restored as a refined touring car, a higher-style prewar sedan, or a period performance machine with very different presentation goals. Tire selection is not completely straightforward because 1937 listings show two period-correct sizes for the same model year rather than one universal fitment. Before choosing a tire for a Graham 116 Supercharger, the first step is to confirm which 16-inch tire size the car actually carries and whether its intended use favors passenger-car or heavier-duty bias-ply construction.
Graham 116 Supercharger Tire Size Guide
Graham 116 Supercharger uses 2 distinct tire sizes across the 1937 model year. Both listed sizes fit 16-inch rims, but they represent different period sizing conventions and should not be treated as interchangeable without verifying the car's actual wheel and fitment needs. The 650-16 size uses an antique diameter-by-section style code, where the leading number refers to the tire's overall diameter class rather than the wheel diameter itself.
6.25-16 is one of the listed 1937 Graham 116 Supercharger sizes and represents a later numeric bias-ply convention used on 16-inch wheels. The 6.25 figure is the nominal section width in inches, and the 16 is the rim diameter. Choose 6.25-16 only after confirming that exact size on the car or in factory-era reference material, because this format points to a specific bias-ply fitment and a tube is required.
650-16 is also listed for 1937 Graham 116 Supercharger and has the broadest product coverage in the available range. In this older format, 650 identifies the tire's overall size class rather than the wheel diameter, while the actual rim diameter is 16 inches on the available products. Choose 650-16 when the car calls for that period size and use case, whether in passenger-car blackwall or wide whitewall form or in heavier-duty variants; a tube is generally required except for the listed tubeless transport highway version.
Graham 116 Supercharger Tires by Year
The year listing below shows which tire sizes are associated with each Graham 116 Supercharger model year and helps narrow the search before comparing products. In 1937, more than two sizes are not listed, but two different size conventions do appear for the same year, so the exact wheel and tire specification on the car matters. The leading number in 650-16 is not the wheel size, and both listed options use 16-inch rims.
1937 Graham 116 Supercharger
- 6.25-16
- 650-16
Best Graham 116 Supercharger Tires for Sale
Available Graham 116 Supercharger products cover 1 listed size with 19 tires from 9 brands. Options include blackwall and wide whitewall bias-ply designs, plus heavier-duty truck-style variants, so confirm the correct 16-inch size and intended use before selecting.
650-16 Products
These are the available products for 650-16.
Frequently Asked Questions
The FAQ below focuses on the 1937 Graham 116 Supercharger's two listed size conventions, how to confirm the correct 16-inch fitment, and how to sort through passenger-car bias-ply, heavier-duty truck-type, and period-style sidewall choices.
Size Basics & Fitment
Graham 116 Supercharger uses two listed tire sizes for 1937: 6.25-16 and 650-16. Both are 16-inch fitments, but they come from different sizing conventions. The 6.25-16 size is a numeric bias-ply format, while 650-16 is an older diameter-by-section style and is the size with the available product range shown here.
That means a Graham 116 Supercharger owner should not choose only by the shared 16-inch wheel diameter. Check the size molded on an existing tire, compare the wheel and rim width, and match the car's intended restoration or driving use before deciding. If the car is being restored for period presentation, sidewall style and tire series may matter just as much as the nominal size.
On a Graham 116 Supercharger, 650-16 is an older size code that combines a period overall size designation with a 16-inch rim diameter. The leading 650 does not mean a 6.50-inch wheel. It identifies the tire's overall size class in an older convention, while the actual wheel diameter is the 16-inch portion of the code.
That distinction matters because modern buyers often read the first number as a direct wheel or section-width measurement in the modern sense. When comparing replacements, confirm that the tire is built for a 16-inch rim and that the overall proportions match the car's needs. For a Graham 116 Supercharger restored to prewar appearance, that older code also helps guide the correct visual profile.
A 1937 Graham 116 Supercharger can show both 6.25-16 and 650-16 because the same model year appears with two period size conventions rather than one single universal tire listing. The split is not a rim-diameter change, since both sizes use 16-inch wheels. Instead, it reflects alternative fitment listings within the same year.
The practical takeaway is that the model year alone is not enough to choose a tire for a Graham 116 Supercharger. Look at the tires that came off the car, inspect the wheel width, and compare the car against period service information or marque references. That extra step helps prevent choosing a tire that is close in era but wrong for the specific car.
Graham 116 Supercharger fitments in these listed sizes are predominantly bias-ply tires, and bias-ply tires in 6.25-16 and most 650-16 applications generally require tubes. The available 650-16 range is overwhelmingly bias-ply, including passenger and heavier-duty patterns. One 650-16 transport-highway product is identified as tubeless, but it sits in a truck-oriented family rather than a typical passenger-car restoration choice.
For most Graham 116 Supercharger restorations, tubes should be part of the fitment plan unless the exact tire and wheel combination is clearly intended for tubeless use. Tube selection should match the tire size and valve-stem style required by the wheel. On an older prewar car, clean rims and correct flap or tube service are just as important as the tire itself.
Buying the Right Tire
The safest way to confirm the right tire for a 1937 Graham 116 Supercharger is to verify the exact size already fitted to the car, then compare that with the two listed options: 6.25-16 and 650-16. Both fit 16-inch rims, so wheel diameter alone does not settle the question. Rim width, the car's current setup, and restoration goals all help determine which listing is appropriate.
Start with the stamping or sidewall markings on the tire being replaced and inspect the wheel itself for size clues. If the car has been restored before, avoid assuming the previous owner chose correctly. Cross-check against period manuals, marque-club advice, or a Graham specialist so the final choice matches both the chassis and the style of restoration you want to achieve.
Graham 116 Supercharger tires in the available 650-16 range come in both blackwall and wide whitewall styles. Blackwall options appear across several brands, while wide whitewall versions are also offered in multiple classic bias-ply lines. That gives owners flexibility depending on whether the car is being presented in a more restrained touring style or a more formal late-prewar appearance.
Sidewall choice has a strong visual effect on a Graham 116 Supercharger, especially because prewar body design and wheel openings make the tire highly visible. A blackwall generally suits a more understated look, while a wide whitewall pushes the car toward a fuller period-dress restoration. Choose the sidewall style after deciding whether authenticity, personal taste, or show presentation is the priority.
The available Graham 116 Supercharger 650-16 products span 9 brands: BFGoodrich, Coker Classic, Firestone, Garfield, Excelsior, Lester, Goodyear, STA, and Tornel. Most of the passenger-car offerings are classic bias-ply designs, while STA and Tornel also cover heavier-duty and truck-style patterns within the same nominal size. That mix gives the owner choices in appearance, tread style, and intended use.
Brand selection on a Graham 116 Supercharger should be guided by the kind of restoration or driving plan you have in mind. A formal passenger-car restoration often points one way, while a utility-minded or specialty build may lean toward the heavier-duty patterns. Once the correct size is established, compare sidewall style, tread character, and construction family before deciding which brand best suits the car.
Graham 116 Supercharger tires in 650-16 are available across several series families, including Silvertown Classic Bias Ply, Coker Classic Bias Ply, Firestone Classic Bias Ply, Garfield Classic Bias Ply, Lester Classic Bias Ply, Deluxe All-Weather, Transport, STA Classic Military, Super Traxion, Transport Highway, Tornel Classic Truck, and Firestone Classic Truck. Some are passenger-car bias-ply lines aimed at prewar appearance, while others are truck, military, or highway-service patterns built around heavier-duty use.
For a Graham 116 Supercharger owner, the key is to separate restoration-oriented passenger tires from utility-style 6-ply and truck-tread options that happen to share the same size. Tread pattern, sidewall style, and duty rating can change the car's appearance and driving character significantly. Decide first whether the car is a concours-style passenger restoration or a more functional road machine, then choose the series accordingly.
Maintenance & Longevity
A Graham 116 Supercharger should be stored in a cool, dry, dark space with the tires protected from sunlight, ozone sources, and long-term moisture. Keep the car on clean pavement or tire pads rather than bare earth, and maintain inflation so the casing does not sit underinflated. On a prewar bias-ply setup, prolonged flat-spotting is especially common if the car remains motionless for long periods.
Move the Graham 116 Supercharger periodically or place it on properly positioned stands if it will be stored for an extended season. Avoid parking with one tire pressed against oil, solvents, or sharp-edged concrete joints. Good storage habits help preserve both the tire's structure and the period look of the sidewalls, which matters on a visible prewar restoration.
Tires on a Graham 116 Supercharger should be inspected before every meaningful drive and at regular intervals even when the car is used only occasionally. On a prewar collector car with bias-ply tires, look closely for sidewall cracking, tread separation, punctures, valve-stem condition, and signs of tube or rim trouble. Any vibration, sudden pull, or pressure loss deserves immediate attention.
A garage-kept Graham 116 Supercharger can still develop tire issues simply from age and inactivity. Make inspection part of the routine when checking fluids, brakes, and steering, not a separate afterthought. If the car has older tires of uncertain service history, periodic review by a shop experienced with antique and classic tires is a sensible part of keeping it roadworthy.
Tires on a Graham 116 Supercharger should be replaced when age, cracking, casing distortion, hardening rubber, or repeated air loss shows that the structure is no longer trustworthy, even if tread remains. Collector cars often age out tires long before they wear them out. That is especially true with prewar bias-ply products, which can spend years carrying weight while seeing very little mileage.
A Graham 116 Supercharger owner should judge tire condition by time, storage history, and professional inspection rather than tread depth alone. Any tire of uncertain age deserves caution, and any older period tire should be treated seriously if the car will do more than display duty. Replacing aging tires before failure protects the car's fenders, steering, and occupants as much as it protects the wheels.
Restoration & Authenticity
Graham 116 Supercharger is associated here with two period sizes for 1937: 6.25-16 and 650-16. The available product families around that fitment are classic bias-ply types, including passenger-car series and some heavier-duty alternatives. Since more than one size convention appears for the same model year, original-equipment choice for a specific car should be tied to that car's exact configuration and period reference material.
For a serious Graham 116 Supercharger restoration, the right answer is usually found by combining the car's existing wheel setup with factory literature, surviving original examples, and marque-club guidance. That approach helps settle not just size, but also whether blackwall or whitewall presentation suits the intended restoration. The goal is to match the car's historical character rather than simply choose a tire that fits the rim.
Correct tire fitment can absolutely affect how a Graham 116 Supercharger is judged and how seriously a restoration is taken. On a prewar car, the wrong size, the wrong sidewall treatment, or a visibly inappropriate truck-style tread can alter stance and period appearance enough to be noticed immediately. Judges and informed buyers often look at tires as part of the car's overall authenticity story.
A Graham 116 Supercharger being restored for shows or high-level resale benefits from getting the size convention and visual presentation right, not just the wheel diameter. Marque clubs and period photos are often the best arbiters when more than one tire size appears within the same model year. Even for a driver, correct tire fitment helps the car sit and steer the way a prewar Graham ought to.
Graham 116 Supercharger tires in the available 650-16 range are offered in both blackwall and wide whitewall forms. Either can suit a late-prewar restoration depending on the exact presentation of the car, because both sidewall styles were part of the era's visual language. The correct choice is less about universal rule and more about how the specific car was trimmed and how the restoration is being interpreted.
A Graham 116 Supercharger restored as a more restrained sedan or driver may look most natural on blackwalls, while a more formal or higher-style restoration may benefit from a wide whitewall. Study period photos of similar cars and compare them to the wheel covers, paint, and trim on your own car. Sidewall style changes the car's character immediately, so it is worth deciding carefully.
Safety & Road Use
A Graham 116 Supercharger can be driven on public roads with correctly fitted, properly maintained tires that match the wheel, size, and intended use of the car. The available range here is dominated by bias-ply construction, and bias-ply behavior is different from modern radials in tracking, braking feel, and steering response. Safety depends as much on condition, inflation, wheel integrity, and chassis health as it does on the tire itself.
A prewar Graham 116 Supercharger should be driven within the limits of its era rather than treated like a modern highway sedan. Fresh tires help, but they do not override old brakes, steering play, or worn suspension parts. If the car has sat for years, make tire fitment one part of a broader mechanical review before putting regular road miles on it.
Before driving a Graham 116 Supercharger, check tire pressure, visible sidewall and tread condition, valve stems, wheel fasteners, and any sign that the tire is rubbing the fender or chassis. On a bias-ply prewar car, also pay attention to uneven stance, flat spotting after storage, and how the steering feels in the first few yards. Any new shake, pull, or noise deserves investigation before continuing.
A Graham 116 Supercharger rewards a slow, methodical pre-drive routine. Walk around the car, inspect each tire in good light, and look under the body for fluid leaks that could reach the rubber. That kind of check is especially important when the car is used only occasionally, because deterioration often shows up between drives rather than during constant use.
A Graham 116 Supercharger on period-style bias-ply tires should be driven at moderate, sensible speeds appropriate to a late-prewar automobile, even when the tires are new. The car's suspension, steering geometry, brakes, and tire construction all belong to a different era than modern traffic expectations. High sustained speed is rarely the best use case for an older bias-ply setup.
Treat a Graham 116 Supercharger as a collector car, not a modern expressway cruiser. Build speed gradually, pay attention to wander or heat buildup, and keep extra margin for braking and lane changes. If the car wears heavier-duty truck-pattern tires in the same nominal size, remember that a more rugged tread does not automatically mean the car should be driven faster.