Triumph Stag Tires
Triumph Stag was one of the distinctive grand touring cars of the early 1970s, blending British open-air motoring with a more refined touring brief than many small sports cars of its time. Built from 1971 through 1973 in the range covered here, Triumph Stag attracts owners who want a tire that looks right on the car while still suiting real road use. Tire selection is less complicated here than on many collector cars because the same size remains in use across the full span, but modern buyers still need to sort through period-style radial options and sidewall appearance differences. Before choosing, confirm that the car is still on its correct 14-inch wheels.
Triumph Stag Tire Size Guide
Triumph Stag uses one distinct tire size across the 1971 to 1973 production span: 185R14. This is a euro-metric radial size, with 185 indicating nominal section width in millimeters, R indicating radial construction, and 14 indicating a 14-inch rim diameter. Available products for this size are radial tires built for 14-inch wheels, with blackwall and narrow whitewall options represented across Michelin, Phoenix, and Vredestein offerings. This is the right place to start for an owner seeking a period-appropriate road tire, but it is still wise to verify the wheel diameter and compare the sidewall style to the car's intended restoration or driving use.
Triumph Stag Tires by Year
The year listing shows the tire size used for each Triumph Stag model year from 1971 through 1973. Across those years, the fitment remains consistent on 14-inch wheels, so the main task is confirming that the car still carries its correct wheel diameter. Each year entry helps narrow the choice between the same basic size in different sidewall styles and brand offerings.
1971 Triumph Stag
- 185R14
1972 Triumph Stag
- 185R14
1973 Triumph Stag
- 185R14
Best Triumph Stag Tires for Sale
Available Triumph Stag tires include 4 products from 3 brands, all covering the 185R14 size used across 1971 to 1973. Confirm the correct size and 14-inch rim diameter on the car before selecting between blackwall and narrow whitewall options.
185R14 Products
These are the available products for 185R14.
Frequently Asked Questions
These Triumph Stag FAQs focus on the single 185R14 fitment, how to interpret that euro-metric radial size, and how to choose between available brands and sidewall styles for road use or restoration-minded presentation.
Size Basics & Fitment
The Triumph Stag uses 185R14 across the 1971, 1972, and 1973 model years covered here. All available products in this fitment are radial tires built for a 14-inch rim, with versions listed as 185R14, 185HR14, and 185R14 90H that stay within the same basic size family. The available sidewall styles include blackwall and narrow whitewall.
That consistency makes the Triumph Stag easier to fit than many collector cars, but it is still smart to confirm that the wheel on the car is actually a 14-inch wheel before selecting a tire. Once the wheel diameter is confirmed, the main choice becomes the presentation and driving character you want, especially whether a blackwall or narrow whitewall better suits the car.
On a Triumph Stag, 185R14 is a euro-metric radial size. The 185 is the nominal section width in millimeters, the R indicates radial construction, and the 14 is the wheel diameter in inches. When the size appears as 185HR14 or 185R14 90H, the added letters and numbers reflect speed or service descriptions while remaining within the same 14-inch fitment family.
That means the most important physical fitment points are still the same basic ones: section width, radial construction, and 14-inch rim diameter. If a Triumph Stag owner is comparing several products in this size, the more meaningful differences usually come from sidewall style, brand, and the intended balance between period appearance and regular driving use.
The Triumph Stag uses a 14-inch rim diameter in the sizes and products listed for 1971 through 1973. Every available tire option in the fitment group is built around a 14-inch wheel. Some products also show compatible rim-width ranges within that 14-inch family, but the wheel diameter itself stays the same.
For an owner standing beside the car, that makes wheel confirmation straightforward: verify that the car still carries 14-inch wheels before moving on to brand or sidewall decisions. If the car has been modified over the years, checking the wheel itself matters more than assuming the original specification has remained in place.
Buying the Right Tire
Triumph Stag tires are available here in blackwall and narrow whitewall styles. Blackwall versions appear in Michelin and Vredestein offerings, while narrow whitewall versions appear in Michelin and Phoenix offerings. All of them share the same 185R14 fitment family and 14-inch rim diameter.
That gives a Triumph Stag owner a useful visual choice without changing the core fitment. Blackwalls usually suit a more understated factory-style or sporting presentation, while narrow whitewalls can complement a touring-oriented period look. The right choice depends less on fit and more on how the car is being restored, presented, or driven.
Triumph Stag tires in this fitment group are available from Michelin, Phoenix, and Vredestein. Michelin appears with MXV offerings, Phoenix offers a narrow whitewall radial, and Vredestein appears with the Sprint Classic. All are listed in the same 185R14 size family for 14-inch wheels.
For the buyer, brand selection usually comes after the basic fitment is settled. Once the 14-inch wheel and 185R14 family are confirmed, compare the available brands by sidewall appearance, overall period feel, and how closely the tire matches the intended use of the Triumph Stag, whether that is touring, local driving, or a more authenticity-minded presentation.
A 1971 Triumph Stag uses 185R14 in the fitment group shown here, and the same size carries through 1972 and 1973 as well. The tire options listed for that year are all radial tires built for a 14-inch wheel. Versions marked 185R14, 185HR14, or 185R14 90H remain part of the same basic sizing family.
The practical check is at the wheel and tire already on the car. Confirm that the wheel is 14 inches in diameter, then compare the current tire markings, the wheel width if needed, and the appearance you want for the finished car. That approach helps separate true fitment questions from simple style choices such as blackwall versus narrow whitewall.
The Triumph Stag offerings here include Michelin MXV and Vredestein Sprint Classic series, along with a Phoenix radial offering that is presented by brand rather than a named series. All of them are radial tires in the 185R14 family for 14-inch wheels. The main visible differences in this group are branding, sidewall treatment, and the period-style presentation of the tire line.
A Triumph Stag owner choosing among these series should think first about the role of the car. If the goal is a clean roadgoing look, a blackwall touring-style radial may be the natural fit; if the car needs a more distinctive period appearance, a narrow whitewall may better suit it. The right series is the one that preserves the correct basic size while matching the character of the car.
Maintenance & Longevity
A Triumph Stag should be stored in a cool, dry, dark space with the tires protected from sunlight, ozone sources, and long periods of sitting on one exact contact patch. Clean floors, stable temperatures, and proper inflation help reduce sidewall stress and flat spotting. Collector cars benefit from being moved slightly from time to time if they are not driven regularly.
That matters because even a good radial tire can age out long before its tread is worn away on a low-mileage classic. If a Triumph Stag spends much of its life parked, make tire storage part of the overall preservation routine along with battery care, fluid checks, and seasonal inspections. Good storage habits protect both ride quality and appearance.
Tires on a Triumph Stag should be visually inspected before every meaningful drive and examined more thoroughly several times a year. Look for sidewall cracking, tread separation, uneven wear, punctures, and any sign that the tire is aging or deforming in storage. Inflation pressure should be checked regularly, especially if the car is driven infrequently.
Regular inspection is especially important on collector cars because age-related deterioration can appear before tread wear becomes significant. A Triumph Stag that sees occasional highway use, touring miles, or long periods in the garage benefits from a deliberate inspection routine rather than a casual glance. If anything looks questionable, have the tire evaluated before road use.
A Triumph Stag tire should be replaced when age, cracking, hardening, separation, impact damage, or persistent air loss appears, even if the tread still looks usable. Collector cars often age their tires by time and storage conditions rather than mileage alone. The calendar matters just as much as the remaining tread depth.
That is why a low-mileage Triumph Stag can still need new tires despite looking well preserved. If the car has sat for extended periods, has unknown tire age, or shows any change in ride quality or sidewall condition, replacement is the prudent next step. A fresh tire in the correct size protects the car's drivability far better than trying to stretch the life of an aged one.
Restoration & Authenticity
The Triumph Stag fitment group here centers on 185R14 radial tires for 14-inch wheels, with available offerings from Michelin, Phoenix, and Vredestein. That establishes the size family used across 1971 through 1973 in this range. Multiple product lines are represented, but no single original-equipment brand claim is established here.
For restoration work, size comes first and brand authenticity comes second unless you have factory literature or marque records tied to the specific car. A Triumph Stag owner aiming for high-level accuracy should compare the car's build period, surviving wheel and tire evidence, and club or marque references before deciding how closely to mirror a factory-delivered appearance.
Correct tire fitment can affect both the appearance and the credibility of a Triumph Stag restoration. Using the proper 185R14 size family on 14-inch wheels preserves the stance, visual balance, and period character expected of the car. Judges and experienced enthusiasts often notice tire profile and sidewall treatment very quickly.
That does not mean every Triumph Stag needs the same presentation, because a touring driver and a concours restoration may have different priorities. The key is consistency: select a tire that matches the car's year, wheel diameter, and restoration goals. If the car will be judged, marque-club standards and period photos are the best references for refining the final sidewall choice.
Triumph Stag tires are available here in both blackwall and narrow whitewall form, all within the same 185R14 fitment family. Blackwall options come from Michelin and Vredestein, while narrow whitewall options are also represented. That means the restoration question is less about basic fit and more about the exact look you want to reproduce.
Many Triumph Stag restorations will lean toward blackwalls for a sporty early-1970s touring appearance, but a narrow whitewall can suit an owner who prefers a more individualized period look. The best answer comes from the car's intended presentation, any surviving period photographs, and the standards used by the marque community for the specific restoration style.
Safety & Road Use
The listed Triumph Stag tires are modern radial products in the correct 185R14 fitment family, so they are intended for real road use when properly fitted to sound 14-inch wheels and a mechanically healthy car. Their radial construction is well suited to the kind of touring use many Stag owners expect. Safe road use still depends on tire age, inflation, wheel condition, and the state of the suspension and brakes.
A Triumph Stag owner should think of the tires as one part of the total driving system rather than an isolated upgrade. Even the right size cannot compensate for aged bushings, poor alignment, or damaged wheels. Before any extended public-road driving, make sure the tire condition and the car's chassis condition support the kind of use you have planned.
Before driving a Triumph Stag, inspect the tires for visible cracking, bulges, punctures, abnormal wear, and correct inflation, then confirm that each tire is seated on a proper 14-inch wheel. It is also wise to check lug tightness, steering response, brake feel, and any signs of fluid leakage or suspension looseness. On a classic touring car, those checks matter every bit as much as the tire size itself.
A short pre-drive routine helps catch the age-related issues that collector cars often develop between outings. If the Triumph Stag has been sitting, pay attention to flat spotting or vibration in the first miles and stop if anything feels wrong. A careful inspection before driving protects the car, the tires, and the overall experience of using it on the road.
A Triumph Stag should be driven at speeds appropriate to the age and condition of the car, the condition of the tires, and the type of roads being used rather than by assuming every classic can comfortably sustain modern traffic pace. The listed tire group includes radial products in the proper 185R14 family, but tire age and vehicle condition remain the controlling factors. A freshly inspected car on sound tires can be used more confidently than one with aged or uncertain rubber.
The practical rule is to build speed gradually and let the car tell you what it is happy doing. If the Triumph Stag shows vibration, wander, heat buildup, or any change in steering feel, back off and inspect the car. Classic road use is safest when the tire condition, wheel condition, and chassis condition all support the pace being asked of them.