1927 Chrysler Tire Fitment Guide

1927 Chrysler vehicles use eight sizes across four model series, and each series has its own pair of fitments. The 50 Series uses 29X4.75 or 4.75-20 on 20-inch wheels. The 60 Series uses 28X5.25 or 5.25-18 on 18-inch wheels. The 70 Series uses 30X6.00 or 6.00-18 on 18-inch wheels, while the 80 Series uses 30X6.75 or 700-18 on 18-inch wheels. For 700-18, the listed rim-width range is 3.75 to 4.00 inches.

That means year and make alone are not enough for a 1927 Chrysler tire search. You need to identify the series first, then confirm whether your car is set up for the antique diameter-by-section size or the numeric bias-ply equivalent used with that model. Once the model is confirmed, compare the wheel's actual diameter before choosing a tire, especially because the 50 Series stands apart from the others with a 20-inch application.

On a 1927 Chrysler, 29X4.75 is an antique diameter-by-section bias-ply size. The first number, 29, refers to the tire's overall diameter in inches, while 4.75 refers to the nominal section width. That differs from later numeric bias-ply sizing, where the final number after the dash names the wheel diameter directly. On the 1927 Chrysler lineup, 29X4.75 belongs specifically to the 50 Series.

That older size notation matters because it can confuse modern buyers who are more familiar with later dash-style numeric and metric sizes. If your 1927 Chrysler 50 Series still uses wheels intended for this size family, keep the antique sizing convention in mind when comparing replacement options. It is also wise to verify the tire currently on the car and the wheel diameter itself, since vintage cars are sometimes changed over the years.

For a 1927 Chrysler, 700-18 is a numeric bias-ply tire size. The 7.00 portion indicates the nominal section width in inches, and the 18 means the tire fits an 18-inch wheel. Within the 1927 Chrysler range, 700-18 is used on the 80 Series. The listed examples in this size are bias-ply Firestone products with a load rating of 1520 pounds at 36 psi and a recommended rim-width range of 3.75 to 4.00 inches.

This size is easier for many owners to read than the earlier diameter-by-section notation, but it still needs to be matched to the correct series. If you own a 1927 Chrysler 80 Series, 700-18 is the numeric size path to compare against the alternate 30X6.75 fitment. It is also the size with the broadest sidewall-style choice here, so appearance can become part of the decision once the basic fitment is confirmed.

No, 1927 Chrysler models do not use the same tire size across the lineup. The 50 Series, 60 Series, 70 Series, and 80 Series each have their own pair of bias-ply sizes, and those sizes step up as the series become larger. The 50 Series uses 20-inch fitments, while the 60, 70, and 80 Series all use 18-inch fitments with different section widths and overall diameters depending on the model.

That model-by-model variation is typical of late-1920s American cars, where a manufacturer's junior and senior lines often carried visibly different tire proportions. If you are unsure which 1927 Chrysler you have, check the series identification before choosing a tire. Doing that first prevents ordering a size that may share the same rim diameter as another Chrysler series but still be wrong in width, stance, and period appearance.

For a 1927 Chrysler 80 Series, both 30X6.75 and 700-18 are bias-ply fitments tied to that model, so the choice is not about switching from bias-ply to radial behavior. It is mainly about matching the size convention and wheel application your car is set up to use. The 700-18 path currently has listed Firestone products in several sidewall styles, while 30X6.75 represents the alternate period size notation for the same series.

Most buyers should start by confirming what is already on the car and checking the wheel diameter before choosing between the two. If the goal is to stay close to a known existing setup, following the established size on the vehicle is often the simplest path. If the car is a restoration, marque specialists and period literature can help confirm which of the two size conventions best matches the way your specific 80 Series was equipped.

The listed 1927 Chrysler tire offerings show sidewall variety in the 700-18 size used by the 80 Series. That size is available in Blackwall, Double-Whitewall, and Wide Whitewall versions within the Firestone bias-ply range shown here. Those choices give owners some freedom to tune the car's visual character while staying within an era-appropriate bias-ply construction. Other 1927 Chrysler sizes on this page do not have a listed sidewall assortment to compare.

For a late-1920s Chrysler, sidewall style can influence how formal, sporty, or luxurious the car appears without changing the underlying fitment. A more restrained blackwall presentation often suits utilitarian or understated restorations, while whitewall treatments can emphasize the upscale look associated with senior cars of the period. If you are preparing the car for judged events, it is worth checking club guidance to confirm which sidewall treatment is most appropriate for your model and market.

The current listed product range for 1927 Chrysler applications shows Firestone offerings in the 700-18 size for the 80 Series. Within that size, the available products include Firestone Balloon and Firestone Classic Bias Ply variations, all in bias-ply construction. No other brand appears in the active product selection shown here for the 1927 Chrysler sizes on this page.

Brand choice is often more limited on pre-war applications than on later collector vehicles, especially when the fitment is tied to a specific series and an early bias-ply size family. For an 80 Series owner, Firestone gives you a recognizable period-style option with several sidewall looks. For the other 1927 Chrysler series, the smarter next step is to narrow the search by exact model and size before comparing whether alternate brand coverage exists deeper in the fitment tree.

A stated rim-width requirement is listed here for the 1927 Chrysler 700-18 size used on the 80 Series. That tire fits an 18-inch rim with a width range of 3.75 to 4.00 inches. The same size also carries a listed load figure of 1520 pounds at 36 psi in the Firestone offerings shown. Other 1927 Chrysler sizes on this page do not include a published rim-width range to compare.

Rim width matters because vintage tires can change shape and behavior if they are mounted on wheels that fall outside the intended range. If your 1927 Chrysler uses 700-18, measure the wheel before final selection instead of assuming every original-looking 18-inch wheel is the same. For the other series and sizes, use the model-specific fitment path and compare the wheel itself to the tire you are considering before mounting.

Within each 1927 Chrysler series, the paired tire sizes generally share the same wheel diameter, but that does not mean all 1927 Chrysler wheels interchange across the lineup. The 50 Series pairs 29X4.75 with 4.75-20 on 20-inch wheels. The 60 Series pairs 28X5.25 with 5.25-18, the 70 Series pairs 30X6.00 with 6.00-18, and the 80 Series pairs 30X6.75 with 700-18, all on 18-inch wheels.

That shared diameter within a series is encouraging, but wheel width and the exact wheel already on the car still need to be confirmed before switching between the two size conventions. This is especially important on restored cars, where wheels may have been changed over time. If the car remains on original or original-style wheels, inspect the wheel dimensions directly and make sure the intended tire matches the specific series rather than just the make and year.

A 1927 Chrysler should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, electric motors, welders, furnaces, and other ozone-producing equipment. Bias-ply tires can flat-spot more readily during long static storage than later radial designs, so prolonged weight on one contact patch is worth avoiding. Clean floors, stable temperature, and moderate inflation all help preserve the tire casing and sidewalls.

For winter layup or any extended rest, move the car periodically or use stands to reduce constant loading if that suits your storage setup. If the car remains on the ground, roll it slightly from time to time so the same section of tread is not carrying the car for months. Tire covers and routine visual checks are inexpensive habits that help a stored 1927 Chrysler age more gracefully.

Tires on a 1927 Chrysler should be judged more by age and condition than by mileage, because collector cars often accumulate very few miles while the rubber continues to age. A practical rule is to begin evaluating tires carefully around five to seven years of service and to consider replacement around the ten-year mark regardless of remaining tread depth. The DOT date code on the tire helps establish age when service records do not.

That timeline is especially important on a pre-war style Chrysler because low annual mileage can create a false sense of security. A tire that still looks full of tread may already have hardening rubber, sidewall cracking, or internal age-related decline. If the car's history is unclear, treat the tire age check as part of the first inspection before any serious driving rather than waiting for visible wear to force the issue.

Tires on a 1927 Chrysler deserve a quick inspection before every drive and a more thorough inspection before any longer outing. Look for sidewall cracking, cuts, bulges, irregular wear, and slow pressure loss, and make sure the tread remains evenly seated on the wheel. Because these are bias-ply applications, changes in shape and standing flat spots after storage are also worth noting before the car is driven at speed.

A short walkaround can prevent a roadside problem on a car that may only be driven occasionally. Check pressure when the tires are cold, inspect valve stems, and make sure the spare is in usable condition rather than simply present. On a vintage Chrysler, tire inspection should be folded into the same pre-drive routine as fluid checks, brake feel, and a general underhood look before heading out.

A 1927 Chrysler 50 Series would have originally used bias-ply tires, because bias-ply construction was the standard passenger-car practice in the late 1920s. For the 50 Series, the relevant size pair is 29X4.75 or 4.75-20, both of which are period-correct bias-ply fitments tied to that model. Chrysler buyers of the era could encounter variation by body style, market, and service replacement history, so original literature and marque expertise still matter.

For restoration work, the safest approach is to match the tire size convention that best aligns with the wheels and historical evidence for your specific car. Cars that have passed through several owners may wear later service-replacement sizes even when the wheels appear original. If authenticity matters, compare your wheel diameter, surviving photos, and club guidance before settling on one of the two 50 Series size paths.

Correct tire fitment matters on a 1927 Chrysler because judges and knowledgeable enthusiasts often look at size, construction type, and sidewall appearance as part of the car's overall authenticity. A tire that is the wrong series size, the wrong wheel diameter, or styled in a way that does not suit the car's presentation can stand out immediately. On a pre-war Chrysler, the visual proportion of the tire is a large part of the car's stance and period character.

That does not mean every event applies the same standard, but it does mean tire choices should support the story your restoration is telling. A touring-quality car can leave more room for practical compromise than a high-level judged restoration. If you are preparing for marque judging, review the event rules and consult Chrysler clubs so your tire size and sidewall treatment align with the expectations for your exact model and body style.

For the 1927 Chrysler 80 Series in 700-18, both Firestone Balloon and Firestone Classic Bias Ply are available in bias-ply construction and share the same listed load figure of 1520 pounds at 36 psi on 18-inch rims measuring 3.75 to 4.00 inches wide. The practical distinction shown here is presentation and product variation: Firestone Balloon appears in Blackwall, Double-Whitewall, and Wide Whitewall forms, while Firestone Classic Bias Ply is shown here in Blackwall.

That makes the choice less about basic fitment and more about the visual result you want on the finished car. Owners seeking a broader range of sidewall looks for an 80 Series will naturally spend more time with the Balloon options, while the Classic Bias Ply offering gives a simpler blackwall path in the same numeric size. Compare the exact sidewall treatment to your restoration goal before selecting between them.

A properly maintained 1927 Chrysler tire can be suitable for normal road use when it is the correct size, in sound condition, and operated within its intended limits. The listed 700-18 products do not show a speed symbol in the size marking here, so there is no separate modern speed-rating comparison to make from the available examples. On a car of this era, overall mechanical condition, braking capability, steering, and suspension often shape safe cruising expectations as much as the tires themselves.

That means road-use decisions should be made as a complete-vehicle judgment rather than by tire size alone. Fresh, correctly mounted tires help, but they do not override the realities of a 1927 chassis and braking system. Before sustained highway driving, make sure the tires are age-appropriate, evenly inflated, and free of visible damage, then match your speed and following distance to the car's pre-war design and road manners.

Inflation pressure for a 1927 Chrysler should follow the factory recommendation for the specific model and size, with the tire maker's published limits treated as the ceiling rather than the everyday setting. For the listed 700-18 products used on the 80 Series, the available load figure is 1520 pounds at 36 psi. That number belongs to that size and should not be transferred to the 50, 60, or 70 Series sizes.

Use the owner's literature, service information, or a knowledgeable marque specialist to establish the starting pressure for your exact Chrysler series and body style. Once the car is safely in service, monitor wear pattern, ride quality, and pressure retention rather than assuming one vintage-car pressure works for every application. Keeping pressures correct is especially important on bias-ply tires, which can change feel and shape noticeably when underinflated.

Before a longer drive in a 1927 Chrysler, inspect every tire for sidewall cracking, cuts, bulges, embedded debris, uneven tread wear, and proper cold inflation. Confirm that each tire is seated correctly on the wheel and that the spare is usable rather than simply decorative. Because this is a pre-war car, the tire check should be paired with a wider look at brakes, wheel bearings, fluid levels, steering play, and basic ignition and cooling readiness.

A longer outing stresses an old car in ways a local neighborhood loop may never reveal. Spend a few extra minutes checking that the jack, tools, and spare arrangement are complete, and make sure the car tracks straight and feels consistent in the first miles of the trip. If anything feels vague, shimmies, or pulls, stop early and inspect rather than trying to drive through it.