1959 Hillman Tire Fitment Guide

1959 Hillman vehicles use two tire sizes across the Husky and Minx II: 155R15 in radial construction and 560-15 in bias-ply construction. Both sizes mount on 15-inch rims. For 155R15, the listed rim-width range is 4.00 to 5.50 inches on products where that specification is shown. For 560-15, available products list either a 4.5-inch rim or a 4.50 to 5.50-inch approved range, depending on the specific tire.

That means year and make alone are enough to narrow the field, but wheel verification still matters before choosing a specific product. The practical choice is usually between the driving character of a radial and the period appearance of a bias-ply tire, since both Hillman models share the same two sizes rather than using different fitments by model.

560-15 is a traditional numeric bias-ply size. The 15 identifies the wheel diameter in inches, while the 560 is the tire's nominal section-width class in the older numeric system rather than a modern millimeter measurement. On 1959 Hillman applications, 560-15 is offered as a bias-ply tire with whitewall styling choices, including narrow and wide whitewalls from Firestone and US Royal.

That size appeals most to owners who want their 1959 Hillman to present as a late-1950s car rather than a later-updated driver. If your goal is show presentation, traditional steering feel, and an era-correct sidewall look, 560-15 is the size to compare first. If you want a radial construction instead, move to the 155R15 options rather than trying to translate the numeric code into a modern tire at random.

155R15 is a metric radial size. The 155 is the nominal section width in millimeters, the R identifies radial construction, and the 15 is the wheel diameter in inches. In this older Euro-metric style, no aspect ratio is written into the code, and it is conventionally treated as an 80-series profile. On 1959 Hillman applications, this size appears in blackwall radial products from Firestone and Michelin.

That makes 155R15 easier for a modern buyer to recognize if they are used to later radial sizing systems. It is still important to compare individual tires within the size, because some 155R15 options are tubeless while others are tube type, and speed ratings can differ as well. Once the size is confirmed, the next step is matching the specific tire to your wheel and intended use.

Both 155R15 and 560-15 fit 1959 Hillman Husky and Minx II models on 15-inch rims, but they represent two different construction types. The 560-15 is a bias-ply tire with traditional whitewall styling choices, while the 155R15 is a radial available as a blackwall. The decision is usually not about which model you own, because both sizes are shared across the 1959 Hillman range covered here.

Choose 560-15 if your priority is a late-1950s presentation and a more original construction type for restoration-minded use. Choose 155R15 if your Hillman is driven more regularly and you prefer a radial layout. Since both sizes share the same wheel diameter, the smartest final check is wheel width and the exact product's construction details before committing to one route.

1959 Hillman tire choices split clearly by size and construction. The 155R15 radial options are offered as blackwalls, while the 560-15 bias-ply choices are offered with narrow whitewall and wide whitewall sidewall styles. Firestone and US Royal cover the whitewall bias-ply side of the range, while Firestone and Michelin cover the blackwall radial side.

For a British compact car of this period, blackwall presentation is often the conservative choice, while whitewalls create a more stylized period look. The main thing is consistency with the character you want for the car. A Minx II or Husky restored toward showroom authenticity may lead you one way, while a driver-oriented car may point you toward the radial blackwall options.

Three brands appear in the available 1959 Hillman tire range: Firestone, Michelin, and US Royal. In 155R15 radial form, the choices come from Firestone and Michelin. In 560-15 bias-ply form, the choices come from Firestone and US Royal. That gives buyers a mix of American classic-tire presentation in the bias-ply size and more European-flavored radial choices in the metric size.

Brand selection matters most after you settle on size and construction. If you are comparing within 155R15, look closely at tube type and speed rating because those details are not identical across the Michelin and Firestone offerings. If you are comparing within 560-15, the more noticeable differences are sidewall style and the approved rim-width range listed for each product.

1959 Hillman tires use 15-inch rims, but the approved rim width depends on the tire size and product. For 155R15, listed products show a rim-width range of 4.00 to 5.50 inches where that specification appears. For 560-15, some products specify a 4.5-inch rim, while others list an approved range of 4.50 to 5.50 inches. Those differences are small, but they still matter when matching a tire to an existing wheel.

A buyer with original wheels should confirm the actual wheel width before choosing between individual products, even when the overall tire size is correct. That is especially helpful when comparing brands within the same size, because one tire may be more flexible about wheel width than another. Staying inside the approved width range helps preserve the intended shape and fit of the tire.

Inner-tube requirements vary within the 155R15 radial size for 1959 Hillman vehicles. Michelin XAS appears in tube-type form, Michelin X and Michelin XAS-FF appear in tubeless form, and Firestone F560 is listed simply as 155R15 without a tube marker in the size line. The 560-15 bias-ply products shown here do not carry tube-type or tubeless markers in the size line.

That makes it important to check the exact sidewall marking and the wheel itself before finalizing your setup. A tube-type tire should be treated differently from a tubeless-design tire, and older wheels may have their own suitability considerations. When a Hillman still wears original rims, many owners also inspect the valve-stem area and wheel condition at the same time rather than focusing on the tire alone.

Both listed 1959 Hillman tire sizes use a 15-inch rim diameter, so the original wheel diameter is compatible with either 155R15 or 560-15. That shared diameter is why both the Husky and Minx II can be considered with either a radial or a bias-ply option. Rim width still needs to be checked against the specific tire, since some products give a narrower single-width recommendation and others allow a broader approved range.

For most buyers, wheel diameter is the easy part and wheel width is the important confirmation step. If the car already has its original wheels, measure them or compare them to the tire's stated approved range before making the final choice. That avoids assuming that every 15-inch tire works equally well on every 15-inch wheel.

A 1959 Hillman stores best in a cool, dry, dark space away from direct sunlight, electric motors, welders, furnaces, and other ozone sources that accelerate rubber aging. Keep the tires clean, maintain inflation, and move the car periodically so it does not sit on one contact patch for months at a time. Bias-ply tires such as 560-15 tend to flat-spot more readily during long static storage, while any older-style collector tire can suffer from cracking if exposed to heat and ozone.

Owners who store a Hillman for an entire season often use tire cradles or stands to reduce prolonged load on the carcass, especially on restored cars that are driven sparingly. Even if the car is not being used, occasional inspection remains worthwhile. A neatly stored car can still develop sidewall aging if the environment is harsh.

Tire age matters more than mileage on a 1959 Hillman, because many collector cars cover very few miles each year. A good rule is to start evaluating tires closely once they are around five to seven years old and to treat about ten years as a serious replacement point regardless of remaining tread. The DOT date code on the tire sidewall is the practical way to determine age when service history is unclear.

That guideline applies whether your Hillman runs 560-15 bias-ply tires or 155R15 radials. A car that looks lightly used can still be riding on hardened, aged rubber that no longer behaves as intended. When age, storage history, and visible condition disagree, age should carry the most weight in the decision.

Tires on a 1959 Hillman should be inspected before every drive and again before any longer outing. Look for sidewall cracking, tread separation, cuts, bulges, uneven wear, and pressure loss. If your chosen tire setup involves a tube-type product, pay extra attention to valve stems and any signs of slow leakage, because a car that sits for long intervals can hide those issues until the next outing.

Frequent checks matter more on collector cars than on daily drivers because a Hillman may spend weeks or months parked between drives. A quick walk-around and pressure check take very little time and can catch problems before they become roadside issues. That habit is especially valuable before club tours, shows, or any trip that puts sustained miles on an older car.

A 1959 Hillman Minx II would have been associated with bias-ply construction in period, making 560-15 the most era-appropriate fitment style among the options shown here. The 155R15 size represents a radial alternative that suits later driving preferences, but radial construction was not the default expectation for an everyday family car of this class in 1959. No single original equipment brand should be assumed without market-specific confirmation.

For a factory-minded restoration, start by comparing 560-15 choices and then narrow the sidewall style to match the car's market, trim presentation, and judging standard. If the car is being prepared for serious marque review, confirm details through Hillman specialists or club resources rather than relying only on broad year-and-make fitment.

Correct tire fitment does matter when a 1959 Hillman is judged for authenticity. Size, construction type, and sidewall appearance all influence whether the car looks appropriate for the period. A radial blackwall can be a sensible road tire, but it may not read the same as a proper bias-ply fitment on a restoration-focused car. Whitewall width can also change the visual character of the car more than many owners expect.

Show standards vary by event, so the right answer depends on whether your Hillman is being judged for factory originality, period touring presentation, or simply overall cleanliness and correctness. When points matter, confirm the event's expectations before choosing between 560-15 and 155R15. Tire choice is one of the first details experienced judges notice because it affects stance, sidewall look, and period impression all at once.

For a 1959 Hillman in 155R15 sizing, both the Michelin XAS and Michelin XAS-FF are H-rated radials carrying the same 155HR15 82H sizing and the same listed 4.00 to 5.50-inch rim-width range. The practical difference shown here is tube designation: the XAS appears as tube type, while the XAS-FF appears as tubeless. Both are blackwall tires and both carry the same listed weight.

That means the choice is less about visual style and more about how the tire is intended to be installed and matched to the wheel. On an older Hillman, wheel condition and setup goals should guide the decision. If you are comparing two otherwise similar radial choices, tube designation can be the deciding detail rather than tread size or speed rating.

1959 Hillman tires can be highway-appropriate when the correct size, construction, age, and condition are all in order. In the 155R15 radial range, available speed ratings include T at 118 mph and H at 130 mph on the products shown here. The 560-15 bias-ply options do not list speed ratings in the same way. On a car of this era, the condition of the vehicle's brakes, steering, suspension, and wheel hardware is often just as important as the tire itself at normal road speeds.

The safest approach is to match the tire to how the Hillman will actually be used rather than chasing an abstract maximum speed figure. A well-maintained radial may be the more comfortable choice for frequent road miles, while a bias-ply tire can still be appropriate for moderate use when properly maintained. Old age, poor storage, and neglected setup are bigger safety concerns than the size code alone.

Inflation pressure on a 1959 Hillman should not be guessed from tire size alone. Within the available choices shown here, 560-15 bias-ply products list a maximum load of 970 pounds at 32 psi, while the Firestone 155R15 radial lists 1045 pounds at 44 psi. Those are tire ratings, not universal running-pressure instructions for every Hillman or every product in the size.

Use the car's original handbook or trusted marque guidance for the vehicle's target inflation setting, then make sure the chosen tire's own limits are respected. Do not transfer a pressure figure from the 155R15 radial to the 560-15 bias-ply size, or vice versa. Pressure should be chosen as part of the whole combination of vehicle, tire construction, and intended use.

Before a longer drive, inspect every tire on the 1959 Hillman for cracking, weathering, cuts, bulges, tread damage, and proper inflation, and do not forget the spare. If your chosen setup uses a tube-type tire, inspect the valve stems and watch for slow pressure loss before departure. A car of this age also deserves a broader mechanical check that includes brakes, steering play, fluid levels, and wheel fastening security.

Longer trips expose weaknesses that a short local drive may never reveal, especially on a collector car that spends much of its life parked. Checking the tires first is worthwhile because they connect every other system to the road. If anything looks questionable, resolve it before the trip rather than hoping the car will tolerate one more outing.