The 1927 Chrysler 70 Series came from an important early period for Chrysler, when the brand was building a reputation for more advanced engineering and upscale presentation than many cars of its day. That makes tire choice more than a routine replacement decision, because the right size and construction shape both the car’s stance and its road manners. The 1927 Chrysler 70 Series uses bias-ply fitments in 30X6.00 and 6.00-18, both tied to 18-inch wheel fitment. For a restoration-minded owner, the main choice is how closely to follow the period sizing presentation while confirming the wheel setup actually on the car before putting it back on the road.
Which Tire Size Is Right for The 1927 Chrysler 70 Series
The 1927 Chrysler 70 Series uses two primary tire sizes, and both are bias-ply fitments associated with the same 18-inch wheel diameter. Because the covered 6 Cyl. sub-model can use either size, the first step is confirming which wheel and tire setup is actually on the car today, especially if it has been restored, re-wheeled, or fitted differently over the years.
30X6.00 is an antique diameter-by-section size, meaning the first number refers to the tire’s approximate overall diameter of 30 inches and the second refers to an approximate section width of 6.00 inches. It is a bias-ply fitment that suits the visual character and operating feel expected on a late-1920s Chrysler. For a car like the 1927 Chrysler 70 Series, this size is often considered by owners who want a strongly period-style presentation rather than a later-looking sizing convention. The important step is confirming that the car’s present wheels match this setup before making a replacement decision.
6.00-18 is a numeric bias-ply size in which 6.00 refers to nominal section width in inches and 18 identifies the rim diameter. That makes it a more familiar vintage sizing format for buyers comparing wheel fitment on a 1927 Chrysler 70 Series. Because it is also a bias-ply application, it remains consistent with the period construction used on the vehicle. This size is a practical choice to evaluate when the car is already set up around 18-inch wheels and you want to confirm fitment by conventional rim-diameter sizing rather than by overall tire diameter designation.
Sub-model fitment is straightforward here because the covered 1927 Chrysler 70 Series 6 Cyl. uses the same pair of bias-ply tire sizes. The key is not choosing among trim levels, but confirming which of the two period fitment conventions is actually mounted on the car.
1
1927 Chrysler 70 Series 6 Cyl.
The 1927 Chrysler 70 Series 6 Cyl. uses the same two bias-ply tire sizes found at the model level: 30X6.00 and 6.00-18. That means tire selection centers on verifying the wheel and existing tire setup, then choosing the size presentation that best matches the car’s restoration direction and current fitment.
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 questions for the 1927 Chrysler 70 Series usually center on the difference between 30X6.00 and 6.00-18, how those sizes relate to 18-inch wheels, and what to inspect on an older restoration before regular road use.
Tire Size & Fitment
What tire size fits a 1927 Chrysler 70 Series?
The 1927 Chrysler 70 Series uses two primary bias-ply tire sizes: 30X6.00 and 6.00-18. The covered 1927 Chrysler 70 Series 6 Cyl. sub-model can use either of those sizes, so the fitment question is not about different trim levels using different tires.
The practical step is confirming which setup is actually on the car now. Older vehicles are often restored over many decades, and wheel changes, prior tire substitutions, or mixed-era parts can affect what belongs on the vehicle today. Matching the replacement tire to the existing wheel and established fitment is more important than choosing by appearance alone.
What size rim does a 1927 Chrysler 70 Series use?
The 1927 Chrysler 70 Series uses an 18-inch rim diameter. That rim size is directly reflected in the 6.00-18 tire designation, while the 30X6.00 size uses an older diameter-by-section format that does not place the wheel diameter in the size code itself.
That difference in labeling is why wheel confirmation matters on pre-war and late-1920s cars. Measuring the installed wheel and checking the current tire markings helps avoid choosing a tire by name alone. A car that has seen restoration work, replacement wheels, or long-term storage deserves a careful inspection before any new tire is selected.
What does 30X6.00 mean on a 1927 Chrysler 70 Series?
On a 1927 Chrysler 70 Series, 30X6.00 is an antique diameter-by-section size. The 30 refers to the tire’s approximate overall diameter in inches, and the 6.00 refers to its approximate section width. It is a bias-ply sizing style commonly seen on earlier vehicles and transitional period applications.
That matters because 30X6.00 does not read like a later numeric tire size such as 6.00-18, even though both are used on this vehicle. Buyers should avoid assuming the two markings are interchangeable without checking the wheel and current setup. On an older Chrysler, the correct replacement decision starts with what is physically mounted on the car.
Choosing the Right Tire
What should I consider when choosing a 30X6.00 or 6.00-18 tire for a 1927 Chrysler 70 Series?
Start with the tire size that matches the actual wheel and fitment already established on the car. The 1927 Chrysler 70 Series uses bias-ply tires in either 30X6.00 or 6.00-18, so the main decision is choosing the correct period size convention rather than comparing modern construction types.
Beyond size, think about how the car will be used and how closely the tire should support a restoration-oriented appearance. A touring car used mainly for shows and occasional drives may call for a different presentation than one that sees regular road miles. Wheel condition, tire age, and overall setup should all be checked before replacement.
How do I choose between the available 30X6.00 and 6.00-18 tires for a 1927 Chrysler 70 Series?
The first choice is not between two styling packages, but between two correct primary sizes used on the 1927 Chrysler 70 Series. 30X6.00 follows an earlier diameter-by-section naming style, while 6.00-18 uses a more familiar numeric bias-ply format tied directly to an 18-inch rim.
Choose the size that matches the car’s present wheel and established fitment rather than the one that simply looks more familiar on paper. On a late-1920s vehicle, tires often reflect decades of past service decisions. Careful wheel measurement, reading the current sidewall markings, and checking clearance help narrow the correct replacement path.
How do I choose the right tire for a restoration-oriented 1927 Chrysler 70 Series?
A restoration-oriented 1927 Chrysler 70 Series should begin with the proper bias-ply construction and the correct primary size already associated with the car, either 30X6.00 or 6.00-18. That preserves the period-style visual character much better than jumping to a different format without first verifying what belongs on the existing wheels.
Appearance still needs to be balanced with practical fitment. On an older restoration, wheel condition, bead-seat integrity, and any previous changes to rims or suspension should be reviewed before mounting new tires. If historical accuracy matters at a high level, compare the car’s current setup with marque-specific references and restoration documentation.
Restoration & Appearance
Which tire should I choose for a period-style 1927 Chrysler 70 Series?
For a period-style 1927 Chrysler 70 Series, the starting point is one of the two correct bias-ply fitments used on the car: 30X6.00 or 6.00-18. Both preserve the construction type associated with the vehicle, but they express the sizing in different period conventions that can influence how authentic the finished setup appears.
The better choice depends on the wheel arrangement and restoration direction of the individual car. Matching the tire to the wheel and existing fitment should come before visual preference alone. Owners pursuing a highly accurate presentation should compare their car against marque-club knowledge, period photos, and other vehicle-specific historical references.
Does correct tire fitment matter for a 1927 Chrysler 70 Series restoration?
Correct tire fitment matters a great deal on a 1927 Chrysler 70 Series restoration because tire size and construction strongly influence stance, wheel fill, and the overall visual balance of the car. With a late-1920s vehicle, using the proper bias-ply sizing format helps maintain an appearance that suits the era.
Fitment also affects practicality, not just looks. A tire that does not properly match the wheel setup can create mounting, clearance, or road-use concerns even if it seems close at a glance. Restored cars often carry older wheels or earlier replacement decisions, so measuring and inspecting the current setup is part of doing the job correctly.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1927 Chrysler 70 Series?
Yes. Modifications can affect tire fitment on a 1927 Chrysler 70 Series even when the tire size itself appears correct. Replacement wheels, altered rim widths, suspension work, brake conversions, or body and fender changes can all change the space available for a bias-ply tire and how it sits on the car.
That is especially important on older vehicles that may have been repaired or updated more than once during their lives. A buyer should confirm wheel diameter, inspect clearance at full steering travel, and look for any evidence of rubbing or uneven positioning. Small changes in an antique-car setup can have a noticeable effect on tire selection.
What should I inspect before driving a 1927 Chrysler 70 Series on new tires?
Before driving a 1927 Chrysler 70 Series on new tires, inspect the wheels for cracks, corrosion, damage, and bead-seat condition, then confirm that the tire size matches the actual wheel setup. It is also wise to check valve stems, mounting quality, and inflation before the car returns to regular road use.
The rest of the chassis deserves attention as well. Steering components, suspension condition, wheel bearings, brake function, and alignment can all affect how a freshly shod antique car behaves. A short, careful test drive followed by another inspection helps catch rubbing, settling, or air-loss issues before a longer outing.
How should 30X6.00 or 6.00-18 tires on a collector 1927 Chrysler 70 Series be maintained?
Collector-car tires on a 1927 Chrysler 70 Series should be checked regularly for pressure loss, sidewall cracking, tread separation, cuts, and signs of age-related hardening. Even if the car sees limited mileage, bias-ply tires still need periodic inspection because storage time can be as important as road time on an older vehicle.
Good maintenance also includes proper storage habits. Keeping the car away from prolonged sunlight, excessive heat, moisture, and ozone sources helps protect the tires between drives. Occasional movement to avoid long-term flat spotting, along with routine visual checks before each outing, is a smart practice for any late-1920s collector car.
