1927 Peerless Tire Fitment Guide

1927 Peerless vehicles use six sizes across four model families, and the fitment is series-specific. The 69 Series uses 33X6.75 and 700-21, the 72 Series uses 33X6.00 and 600-21, and the 80 Series and 90 Series share 30X5.77 and 30x5. The two numeric sizes, 700-21 and 600-21, mount on 21-inch rims, with listed rim-width ranges of 3.00 to 4.00 inches depending on the product.

That spread means a 1927 Peerless owner should identify the exact series before choosing a tire size. The 69 and 72 Series have currently listed 21-inch numeric products, while the 80 and 90 Series remain centered on antique-format sizes. If your car has already been restored or re-wheeled at some point in its life, compare the sidewall marking on the tire and the actual wheel diameter before making a final selection.

On a 1927 Peerless, 700-21 is a numeric bias-ply tire size. The 7.00 portion refers to the nominal section width, and the 21 identifies the wheel diameter in inches. In the 1927 Peerless range, that size belongs to the 69 Series and is offered in period-style bias-ply construction rather than modern metric radial form.

Understanding that code helps separate wheel fitment from appearance choices. Once you know the car uses 700-21, the next decisions are brand and sidewall treatment, since blackwall, wide whitewall, and double-whitewall versions exist in that size. That makes 700-21 straightforward mechanically, while still leaving room to tune the car's finished look to suit a formal restoration or a more road-oriented presentation.

No, 1927 Peerless models do not all use the same tire size. The 69 Series, 72 Series, and the paired 80 Series and 90 Series each have their own size groupings, with only the 80 Series and 90 Series sharing the same listed sizes. Peerless was still offering distinct chassis and body families in 1927, so tire fitment changed with the series.

That matters because choosing by year and make alone can lead you into the wrong diameter or the wrong style of period marking. A 69 Series owner deciding between 33X6.75 and 700-21 faces a different question than an 80 Series owner looking at 30X5.77 or 30x5. If the series tag, title, or club records are available, use them to narrow the car correctly before moving on to the tire selection.

Available 1927 Peerless products in the listed 21-inch sizes include several sidewall styles. In 700-21, Firestone offers blackwall, wide whitewall, and double-whitewall versions, while Michelin appears in blackwall. In 600-21, blackwall and wide whitewall options are available through Lester and BFGoodrich.

Sidewall style changes the car's visual character more than its fitment. Blackwalls usually suit a restrained, earlier look, while whitewall treatments create a more formal late-1920s presentation that many owners prefer on luxury cars. If you are restoring for event judging, confirm whether your intended show standard favors a plain blackwall or a specific whitewall treatment for your body style and market presentation.

Four brands appear in the available 1927 Peerless fitments listed here: Firestone, Michelin, Lester, and BFGoodrich. Firestone and Michelin cover 700-21 for the 69 Series, while Lester and BFGoodrich cover 600-21 for the 72 Series. All of them are bias-ply offerings suited to the prewar Peerless character.

Brand choice becomes more meaningful once the size is confirmed, because the available brands differ by series. A 69 Series owner can compare Firestone against Michelin within 700-21, while a 72 Series owner will be looking at Lester and BFGoodrich within 600-21. If you are trying to match a particular visual style, compare sidewall treatment at the same time, since brand and appearance options are linked in these sizes.

For a 1927 Peerless using 700-21, Firestone Balloon and Michelin Double Rivet share the same basic size and bias-ply construction, but their listed wheel fitment ranges differ. Firestone Balloon is shown for 3.75 to 4.00-inch rims and carries a listed max load of 1930 pounds at 40 psi, while Michelin Double Rivet is shown for 3.00 to 3.75-inch rims. Firestone also appears in multiple sidewall treatments, while Michelin is listed here in blackwall form.

That makes the decision partly visual and partly wheel-specific. If your 69 Series is running a rim near the narrower end of the range, Michelin's stated fitment may be the closer match; if the wheel is in the wider 3.75 to 4.00-inch range, Firestone aligns with that listing. Checking the actual rim before selecting between them is more useful than comparing by brand name alone.

Rim width guidance is available for the two listed 21-inch numeric sizes used on 1927 Peerless vehicles. The 700-21 products span 3.00 to 4.00 inches depending on the brand, with Michelin shown at 3.00 to 3.75 inches and Firestone at 3.75 to 4.00 inches. The 600-21 BFGoodrich products are shown for 3.00 to 3.75-inch rims.

That range is a strong reminder to match the tire to the actual wheel, not only to the sidewall size marking. Even within the same 700-21 size, different product lines favor different rim widths. On a prewar car that may have seen wheel changes over many decades, measuring the wheel before final selection is one of the most useful checks you can make.

The available 1927 Peerless products shown here do not carry tube-type or tubeless markings in their listed size descriptions, so tube practice should be confirmed against the wheel design and the exact tire you plan to run. That matters especially on prewar wheels, where original rim construction often leads owners toward tube use even when the sidewall listing is not explicit.

A practical approach is to inspect the wheel first and then check the specific tire's sidewall marking before assembly. If the car retains older lock-ring, clincher-era, or otherwise non-modern wheel construction, inner-tube decisions become part of the restoration setup rather than just a tire purchase choice. A marque specialist or experienced vintage tire installer can help settle that detail on a 1927 Peerless.

A 1927 Peerless should be stored clean, dry, and out of direct sunlight, with the tires kept away from electric motors, battery chargers, welders, and other ozone-producing equipment. Bias-ply tires are more prone to temporary flat-spotting during long static storage than modern radials, so long idle periods deserve extra attention. Keeping the car on a cool floor and maintaining proper inflation helps preserve the casing and sidewall shape.

Owners who store a Peerless for extended stretches often benefit from rolling the car periodically or supporting it in a way that reduces constant load on one contact patch. If the car is left untouched for months, inspect for sidewall checking before the next drive. Good storage conditions do as much for tire life on a collector Peerless as limited mileage does.

On a 1927 Peerless, tire life is usually judged more by age and condition than by accumulated miles. Collector-car tires should be inspected closely once they reach the five-to-seven-year window, and many owners treat around ten years as the point where replacement deserves serious consideration even if tread still looks presentable. The DOT-style age code on the tire is an important reference when available on the product.

That timeline matters because a lightly driven Peerless can age out its tires long before it wears them out. Sidewall cracking, hardening, vibration, or repeated pressure loss are stronger replacement signals than tread depth alone on a low-use prewar car. A yearly review of tire age along with a close visual inspection is a sensible routine for any regularly shown or toured 1927 Peerless.

Tires on a 1927 Peerless deserve a quick inspection before every drive and a more thorough inspection before any extended outing. Look for cuts, bulges, irregular tread wear, weather checking, and signs that the tire has lost pressure since the last use. On a prewar car, valve stems and the spare should be part of the same check because age affects all five tires, not only the four on the ground.

Frequent inspection matters because collector cars often sit for long periods and then return to road use with little warning. A problem that develops slowly in storage can become obvious only once the car is driven at speed. Building a simple pre-drive walkaround into your routine is one of the best habits for protecting both the tires and the rest of a 1927 Peerless.

A 1927 Peerless 69 Series would have been a bias-ply application in period, and the listed size family for that series is 33X6.75 alongside 700-21. That reflects the era's overlap between early overall-diameter style sizing and later numeric rim-based sizing. The key point for originality is that a 69 Series belongs in one of those period-correct bias-ply size conventions rather than a modern metric format.

If you are restoring a specific body style or market-delivery car, use marque-club literature and surviving factory references to confirm which size expression is most appropriate for your exact vehicle. Original-equipment brand should not be assumed from current reproduction offerings alone. For most restorers, getting the construction type, size family, and sidewall appearance right is the foundation of an authentic 69 Series tire choice.

Correct tire fitment matters a great deal when showing a 1927 Peerless, especially at events where authenticity is judged closely. Size family, construction type, and sidewall treatment all affect whether the car presents as era-appropriate. A modern-looking replacement concept, an incorrect whitewall treatment, or a size that belongs to a different Peerless series can all stand out on a carefully restored prewar automobile.

That does not mean every event uses the same standard, so the smart move is to match your tire choice to the level of judging you expect. Club tours and informal shows may allow more flexibility than marque-focused concours events. If the goal is maximum authenticity, verify the accepted tire appearance for your series before committing to a blackwall, wide whitewall, or double-whitewall presentation.

For a 1927 Peerless 72 Series using 600-21, BFGoodrich and Lester share the same bias-ply size but differ in the details shown for available products. BFGoodrich appears in blackwall and wide whitewall form, includes a listed load figure of 1350 pounds at 36 psi, and is shown for 3.00 to 3.75-inch rims. Lester appears here as a blackwall-only 600-21 entry.

That gives a 72 Series owner a clearer visual choice than a broad construction choice, since both are bias-ply tires in the correct period format. If you want a plain blackwall presentation, both brands remain relevant; if you want a wide whitewall in this size, BFGoodrich is the listed path. Wheel width should still be checked before final selection, especially on an older restoration.

1927 Peerless tires can be used on the road when they are the correct size, in sound condition, and properly mounted, but they remain bias-ply tires intended for a prewar automobile with prewar handling and braking expectations. No speed ratings are shown in the listed 1927 Peerless sizes here. On a car of this age, the condition of the chassis, brakes, steering, and wheels is often just as important to road safety as the tire itself.

For normal touring use, the practical goal is smooth, conservative operation rather than treating a 1927 Peerless like a modern highway car. Fresh inspection, proper inflation, and realistic speed expectations matter more than chasing modern performance assumptions. If the car has been dormant for years, a full mechanical review before regular road use is the right companion step to any tire replacement.

Inflation pressure on a 1927 Peerless should be set by the tire size and the specific product you are using, not transferred loosely from one size to another. Among the listed products, 700-21 Firestone tires show 1930 pounds at 40 psi, and 600-21 BFGoodrich tires show 1350 pounds at 36 psi. Those figures are tire ratings, not blanket instructions for every Peerless application.

The best practice is to consult the car's original literature for period pressure guidance and then compare it with the reproduction tire manufacturer's published load-and-pressure information for the exact tire on the car. A 69 Series using 700-21 should not automatically inherit the pressure logic of a 72 Series on 600-21. Keeping each size with its own pressure reference avoids avoidable ride and wear issues.

Before a longer drive in a 1927 Peerless, inspect each tire for weather cracking, tread separation, cuts, bulges, and signs of air loss, then verify that the spare is usable as well. Also look at valve stems, wheel condition, and whether the tires are wearing evenly. Since these are prewar bias-ply applications, any change in steering feel or vibration deserves attention before the trip begins.

Tire readiness is only one part of preparing a car from this era for distance use, so combine that check with a broader mechanical review of brakes, cooling, steering, and fuel systems. A long-stored Peerless may appear presentable but still need careful recommissioning. Treating the tires as part of the full touring preparation helps avoid roadside problems that have little to do with tread depth alone.