Singer Chamois Tires

Singer Chamois was the badge-engineered companion to the Rootes small-car line of the mid-1960s, a compact British saloon built from 1964 through 1968 during a period when small-displacement economy cars were becoming more refined and more capable on modern roads. That matters for tire selection because the Singer Chamois sits at the point where traditional numeric bias-ply sizing and newer metric radial sizing overlap, and both appear across the same production years. Getting the right tire starts with confirming whether your Singer Chamois is set up for the original-style 12-inch bias-ply fitment or the 12-inch metric radial size before choosing construction and appearance.

Singer Chamois Tire Size Guide

Singer Chamois uses 2 distinct tire sizes across the 1964 to 1968 production run. Both sizes share the same 12-inch rim diameter, but they represent two different sizing systems: a traditional numeric bias-ply size and a newer metric radial size. That overlap is important because the numeric size reflects an earlier bias-ply convention, while the metric size identifies a radial built for a 12-inch wheel.

145R121964-1968Euro-metric radial

145R12 is a radial size listed for Singer Chamois models from 1964 through 1968. The 145 identifies a nominal 145 mm section width, the R indicates radial construction, and the 12 is the rim diameter in inches. Choose this size when your Singer Chamois is set up for the listed metric radial fitment and you want a period-appropriate radial construction on a 12-inch wheel.

5.50-121964-1968Numeric bias-ply

5.50-12 is the traditional numeric bias-ply size listed for Singer Chamois models from 1964 through 1968. The 5.50 indicates nominal section width in inches and the 12 identifies the rim diameter in inches. Choose this size when your Singer Chamois retains the original-style bias-ply fitment and period driving character; a tube is required.

Singer Chamois Tires by Year

The year listing breaks Singer Chamois tire fitment down from 1964 through 1968 so you can match the car to the correct size before comparing products. Every listed year includes both 145R12 and 5.50-12, so selection comes down to the specific wheel and whether the car is running radial or traditional bias-ply fitment. These year entries are best used as a starting point alongside the wheel size on the car and any restoration records you have.

Best Singer Chamois Tires for Sale

Available Singer Chamois tire products currently cover 1 brand and 1 product across the listed sizes. Confirm the correct size and 12-inch rim fitment on the car before selecting.

145R12 Products

These are the available products for 145R12.

80 Series Metric Radial

Michelin MX | 145R12

Michelin - Michelin MX

SidewallBlackwall
Rim Diameter12 in
Rim Width4.5 in
Weight20 lb
Max Load—
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Frequently Asked Questions

The Singer Chamois FAQ focuses on the key decisions for this model: choosing between 145R12 and 5.50-12, understanding radial versus bias-ply construction, and confirming what suits a restored or regularly driven mid-1960s small British saloon.

Size Basics & Fitment

Singer Chamois uses two listed tire sizes across the 1964 through 1968 model years: 145R12 and 5.50-12. Both sizes are associated with 12-inch wheels. The difference is construction and sizing convention, with 145R12 being a metric-style radial size and 5.50-12 being a traditional numeric bias-ply size.

That means a Singer Chamois owner should not stop at the model year alone. Check the tire already on the car, confirm the wheel diameter, and decide whether the car is being kept in original-style bias-ply form or fitted with a radial setup. That approach will keep the car visually consistent and help avoid choosing a tire that does not match the wheel or the driving character you want.

A 1966 Singer Chamois has two listed sizes because the model appears with both a traditional numeric bias-ply fitment, 5.50-12, and a metric radial fitment, 145R12. The wheel diameter stays the same at 12 inches, so the split is not a wheel-size change. It is a construction and sizing-system split within the same production year.

For a car from 1966, the practical step is to confirm which type of wheel and tire setup the car currently uses or which specification you are restoring toward. A bias-ply setup will preserve a more period-correct feel, while a radial setup may suit an owner who intends to drive the Singer Chamois more regularly. Matching all four tires to one construction type is the sensible way to proceed.

The listed Singer Chamois tire sizes both use a 12-inch rim diameter. The radial size 145R12 states that wheel diameter directly in the size code, and the numeric bias-ply size 5.50-12 also ends in 12 to identify a 12-inch rim. There is no listed change in wheel diameter across the 1964 to 1968 production span.

Even with a consistent 12-inch rim size, it is still worth checking the actual wheels on the car because many small British cars have been altered over the years. Confirm the wheel diameter stamped on the rim or verify through the tire sidewall already fitted. That extra step matters most on restoration projects where parts may have been swapped long ago.

Singer Chamois using the 5.50-12 bias-ply size should be treated as a tube-type application. That numeric bias-ply format follows the older construction style, and a tube is required. The listed 145R12 Michelin MX radial is marked TL, which identifies it as a tubeless tire.

The important next step is to match the tire type to the wheel you actually have. If your Singer Chamois is being restored around bias-ply tires, plan on the correct tube setup as part of the installation. If the car is fitted with the 145R12 radial, confirm that the wheel condition and valve arrangement are appropriate for a tubeless tire before the car goes back into service.

Buying the Right Tire

A 1965 Singer Chamois can use either 145R12 or 5.50-12, so the right answer comes from the specific wheel and tire configuration on the car rather than the year alone. Both are 12-inch fitments, but one is a metric radial and the other is a traditional numeric bias-ply size. That means a quick look at the sidewall or wheel can usually narrow the choice immediately.

Start by checking the existing tire size, then compare that with the wheel diameter and the way the car is being restored or driven. If the Singer Chamois is kept to an original-style presentation, the bias-ply route may be the natural match. If the car already runs a radial setup, replacing like with like usually avoids unnecessary changes in handling feel and appearance.

The currently listed Singer Chamois radial product in 145R12 is available as a blackwall tire. No additional sidewall styles are listed here for that size. Blackwall appearance suits the understated look expected on many compact mid-1960s British saloons.

Sidewall style matters almost as much as size on a finished car because it changes the overall presentation at a glance. If your Singer Chamois is being restored for a factory-like look, keep the wheel, hubcap, and tire appearance working together rather than choosing by size alone. On a small car, a sidewall style that looks too modern or too dressy can stand out immediately.

The currently listed Singer Chamois tire product is from Michelin. The available product is the Michelin MX in 145R12 radial form. No additional brands are listed within the available products here.

That makes brand choice straightforward for the listed radial option, but the more important check is whether the size and construction match your Singer Chamois. Owners comparing originality, driving feel, and appearance should first decide between radial and bias-ply fitment. Once that is settled, brand selection only matters if there are multiple products in the size you intend to use.

The listed Singer Chamois product range includes the Michelin MX series in 145R12. That series is a radial passenger-car tire in a modern metric sizing format rather than a traditional numeric bias-ply design. It represents the radial side of the Singer Chamois fitment picture rather than the older construction style indicated by 5.50-12.

For a Singer Chamois owner, tire series matters because it often signals the character of the tire as much as the size itself. A radial series like Michelin MX generally points toward more modern road manners, while the numeric bias-ply size points toward a more period-authentic setup. Decide which direction fits your restoration goals and driving expectations before focusing on brand details.

Maintenance & Longevity

Singer Chamois should be stored on a clean, dry surface away from direct sunlight, ozone sources, and large temperature swings. Proper inflation matters even when the car is parked, because underinflated tires can flat-spot and stressed sidewalls age more quickly. A lightweight car like Singer Chamois still benefits from regular tire pressure checks during storage.

If the car sits for long periods, move it occasionally or support it in a way that reduces prolonged loading on one contact patch. Keep oil, fuel, and solvent exposure away from the tires and tubes. Good storage habits are especially worthwhile on collector cars because tire aging often comes from time and environment rather than mileage.

Tires on a Singer Chamois should be inspected before each meaningful drive and more thoroughly at regular intervals through the year. Look for cracking, tread separation, sidewall bulges, embedded objects, uneven wear, and signs of leakage. On a collector car, age and inactivity can be as important as tread depth.

A practical routine is to give the tires a quick visual inspection every time the Singer Chamois comes out of the garage, then check pressures and overall condition more carefully on a schedule. If the car uses older wheels or tube-type bias-ply tires, include the valve stems, tube condition, and wheel well in that inspection. Catching problems early prevents cosmetic restoration work from turning into roadside trouble.

Singer Chamois tires should be replaced when age-related deterioration appears, even if the tread still looks usable. Cracking, stiffness, recurring air loss, impact damage, or any sign of structural change is enough reason to remove a collector tire from service. Tread depth alone is not a reliable guide on low-mileage classic cars.

The right habit is to judge a Singer Chamois tire by condition, age, and use pattern together rather than by mileage. Cars that spend years parked may need tire replacement sooner than regularly exercised cars with similar tread. Any tire of uncertain age deserves a careful professional inspection before the car returns to road use, especially if the vehicle has been dormant for a long period.

Restoration & Authenticity

Singer Chamois is listed with both 145R12 and 5.50-12 across the 1964 to 1968 run, which shows that both a metric radial size and a traditional numeric bias-ply size are relevant to the model. That does not make them interchangeable from an originality standpoint, because a specific car may have been delivered or later prepared with one type rather than the other.

For a restoration, the best path is to compare the car against period photographs, surviving tires, wheel markings, and marque references for the exact year and specification you own. Singer Chamois is the sort of compact British model where small details make a visible difference. Choosing the right size and construction helps the car look settled and correct rather than merely usable.

Correct tire fitment can affect both presentation and judging on a Singer Chamois because tire size, construction, and sidewall appearance all influence how authentic the car looks. Judges and knowledgeable enthusiasts notice whether a compact mid-1960s saloon sits properly on its wheels. A visibly incorrect tire can distract from otherwise strong restoration work.

The practical point is that a Singer Chamois restored for shows should have tires that match the intended period character of the build. Radials may be acceptable for a driving-focused restoration, while bias-ply fitment may better suit a factory-style presentation. Marque clubs and period reference material remain the best standards when authenticity is important to the car’s final value.

The listed Singer Chamois radial product is a blackwall, and blackwall styling is consistent with the restrained appearance expected on many small British saloons of the period. No alternate sidewall style is listed here for the available radial product. On a car this size, sidewall appearance has a strong visual effect because the tire is such a prominent part of the profile.

A careful restoration should treat sidewall style as part of the whole wheel presentation, not an afterthought. Match the tire appearance to the wheel finish, trim rings if used, and the level of authenticity you want the Singer Chamois to show. A simple blackwall often looks more convincing on a modestly trimmed 1960s economy-based car than a flashier sidewall treatment.

Safety & Road Use

Singer Chamois can be driven on public roads when the tires are the correct size, properly installed, in sound condition, and matched to the car’s wheel setup. The listed fitments include both radial and bias-ply types, and each should be used as a complete, consistent set appropriate to the vehicle. Safety depends on condition and suitability, not size designation alone.

Before any real road use, make sure the Singer Chamois has properly inspected wheels, sound valve hardware, correct inflation, and no age-related tire defects. A small, light car can still become unsettled quickly if one tire is mismatched or deteriorated. Any newly acquired or long-stored car deserves a cautious recommissioning process before it is trusted in modern traffic.

Before driving a Singer Chamois, check tire pressure, visible condition, valve stems, tread surface, and the overall match of all four tires. Make sure the car is not mixing unrelated sizes or mixing radial and bias-ply construction. Also confirm that each tire clears the body and suspension through steering movement and normal ride height.

Those checks matter because the Singer Chamois is a compact car with little margin for sloppy setup. A mismatch in tire construction or a neglected old tire can change steering response and braking feel more than many owners expect. It is also wise to confirm wheel fasteners, spare-tire condition, and basic mechanical readiness before heading beyond a short local test drive.

Appropriate speed for a Singer Chamois on original-style tires should be guided by the tire’s construction, condition, age, and the overall state of the car rather than by enthusiasm alone. A fresh, correctly fitted radial and a traditional bias-ply tire do not behave the same way at road speed. Collector cars also place limits on braking, suspension, and steering that matter as much as the tire itself.

The sensible approach is to drive a Singer Chamois at moderate speeds that suit the tire type and the car’s condition, then build confidence gradually after careful inspection and testing. If the car is on bias-ply tires, expect a more period-correct but less modern feel. If it is on radials, do not assume the rest of the car is automatically ready for sustained higher-speed driving without a full mechanical review.