The 1967 Triumph Sports Six belongs to an era when compact British sports cars balanced light weight, quick responses, and clean European proportions. For owners restoring one for period presentation or keeping one on the road for fair-weather driving, tire choice has a strong effect on both appearance and character. This model is associated with two 13-inch fitments: a 560-13 bias-ply tire and a 155R13 radial. That opens the door to traditional whitewall bias-ply options as well as blackwall radial choices from European-style tire lines. The right direction depends on whether the priority is restoration-minded appearance, road manners, or preserving the wheel and fitment setup already on the car.
Which Tire Size Is Right for The 1967 Triumph Sports Six
The 1967 Triumph Sports Six is associated with two primary 13-inch tire sizes: 560-13 in bias-ply construction and 155R13 in radial construction. Since both sizes appear on the same model, the real decision is less about rim diameter and more about whether the car is staying with a traditional bias-ply presentation or moving toward a radial setup. Confirm the wheel width already on the car before making that choice.
155R13 is a Euro-metric radial size in which 155 refers to nominal section width in millimeters, R identifies radial construction, and 13 is the wheel diameter in inches. On a 1967 Triumph Sports Six, this size suits owners who want a radial-format tire while staying with the correct 13-inch rim diameter. Available choices include Michelin and Dunlop products, both in blackwall form, with tire series such as Michelin XAS-FF and SP Sport Aquajet. It is a useful size to evaluate when the car is already set up for radial use or when a more European-style tire presentation is the goal.
560-13 is a numeric bias-ply size in which 560 represents an approximate 5.60-inch nominal section width and 13 identifies the rim diameter. This format reflects the traditional sizing language used on many small-car bias-ply tires and gives the Sports Six a distinctly vintage look. Available options include BFGoodrich and Firestone products in Silvertown Classic Bias Ply and Firestone Classic Bias Ply series, with narrow whitewall and wide whitewall sidewall treatments. It is the size to consider when preserving a more period-style appearance matters as much as basic fitment.
Fitment is straightforward here because the covered sub-model shares the same two 13-inch tire-size paths found at the model level. Checking the exact sub-model still matters because the decision centers on whether the car is being kept in a bias-ply-style setup or fitted with a radial alternative.
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1967 Triumph Sports Six Base
The 1967 Triumph Sports Six Base is associated with both 155R13 radial and 560-13 bias-ply fitments on 13-inch wheels. That gives the owner a choice between a more traditional bias-ply appearance and a radial-format setup, with wheel width and overall vehicle presentation guiding the final selection.
Bias-Ply to Radial Tire Conversion for the 1967 Triumph Sports Six
For the original 560-13 size, three radial-equivalent options are available. 155R13 is the 80-series metric radial equivalent, P155/75R13 is the P-metric 75-series radial alternative, and P155/70R13 is the P-metric 70-series radial alternative. These options differ mainly by sizing convention and profile family rather than serving as automatic substitutes. A recommended rim-width range of 4 to 5 inches applies to the radial-equivalent path, so wheel width, overall dimensions, and clearance should all be checked before converting from the bias-ply fitment.
Modern Radial Equivalents
155R13
Equivalent 80-series Metric Radial (560-13)
P155/75R13
Equivalent P-metric 75-series Radial (560-13)
P155/70R13
Equivalent P-metric 70-series Radial (560-13)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (4-5 in) and load needs match your vehicle specifications.
Check fender clearance, steering clearance, and stance before installation.
Consider suspension condition and intended road use when choosing equivalents.
Important Fitment Notes
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1967 Triumph Sports Six Tires for Sale
Available choices for the 1967 Triumph Sports Six include Michelin and Dunlop radial blackwalls in 155R13, plus BFGoodrich and Firestone bias-ply tires in 560-13. The main comparisons are construction type, tire series, sidewall treatment, and wheel-width compatibility.
These FAQs focus on the two 13-inch tire paths for the 1967 Triumph Sports Six, including size meaning, wheel fitment, bias-ply versus radial choices, sidewall presentation, and the basic checks worth making before road use.
Tire Size & Fitment
What tire size fits a 1967 Triumph Sports Six?
A 1967 Triumph Sports Six is associated with two tire sizes: 560-13 in bias-ply construction and 155R13 in radial construction. Both use a 13-inch rim, so the fitment question is not about wheel diameter alone but about which tire construction and sizing system matches the car’s current setup and the look the owner wants.
A bias-ply 560-13 gives the car a more traditional vintage presentation, while 155R13 moves into a radial format. Before choosing between them, confirm the wheel width on the car and check whether the Sports Six still has its original-style wheel and suspension setup or has been changed over time.
What size rim does a 1967 Triumph Sports Six use?
The 1967 Triumph Sports Six uses a 13-inch rim with both of its associated tire sizes. That applies to the 560-13 bias-ply fitment and the 155R13 radial fitment, so the key common factor between the two sizing paths is the same wheel diameter.
Rim diameter is only part of the fitment picture on a small British sports car. Wheel width still matters, especially when comparing a traditional 560-13 bias-ply tire with a radial alternative, so it is worth measuring the actual wheel before selecting a tire for restoration use or regular road driving.
Does the 1967 Triumph Sports Six Base use the same tire size?
Yes. The 1967 Triumph Sports Six Base is associated with the same two tire sizes used at the model level: 560-13 bias-ply and 155R13 radial. That means the Base sub-model does not introduce a separate wheel diameter or a unique tire-size requirement within this covered fitment range.
The practical decision still comes down to construction type and appearance. Owners keeping a period-style look often focus on the 560-13 bias-ply size, while owners evaluating radial use usually look at 155R13. Checking the wheel width and overall condition of the suspension and steering helps keep the choice grounded in the car’s actual setup.
Bias-Ply & Radial Options
Is 560-13 a bias-ply or radial tire for the 1967 Triumph Sports Six?
On the 1967 Triumph Sports Six, 560-13 is a bias-ply tire size. It uses a vintage numeric sizing format, with the 560 figure representing nominal section width in an older inch-based system and the 13 indicating the wheel diameter in inches.
That matters because a 560-13 bias-ply tire gives the car a different construction type and visual character than a radial. Owners choosing this size usually focus on a traditional presentation, especially when whitewall styling is part of the plan, and should make sure the wheel width and overall vehicle setup still suit the intended bias-ply fitment.
What radial tire sizes are equivalent to 560-13?
Radial equivalents for 560-13 include 155R13 as an 80-series metric radial, P155/75R13 as a P-metric 75-series radial, and P155/70R13 as a P-metric 70-series radial. These sizes provide radial-format alternatives to the original-style bias-ply size while keeping the 13-inch wheel diameter in the conversation.
Each equivalent should be treated as an alternative to evaluate rather than an automatic swap. A recommended rim-width range of 4 to 5 inches applies to the radial-equivalent path, and the owner should also compare wheel compatibility, body and steering clearance, and the overall stance the car already has before changing construction.
What should I check before converting my 1967 Triumph Sports Six from bias-ply to radial tires?
Start by confirming the actual wheel width on the car, since the radial-equivalent path from 560-13 carries a recommended rim-width range of 4 to 5 inches. It also helps to verify which size is already installed, because some Sports Six cars may already be running 155R13 radial tires rather than the older 560-13 bias-ply format.
Beyond the wheel itself, compare the tire’s physical fit within the car’s existing steering and fender space. A Sports Six with replacement wheels, suspension work, or alignment issues can react differently than a stock-style setup, so checking clearance and overall condition first makes the conversion decision much more reliable.
Choosing the Right Tire
What should I consider when choosing a 560-13 tire for a 1967 Triumph Sports Six?
A 560-13 tire choice for a 1967 Triumph Sports Six starts with confirming that the car is staying with its bias-ply fitment path. In this size, the available choices differ by brand, tire series, sidewall treatment, and wheel-width range, with BFGoodrich and Firestone options appearing in traditional bias-ply lines.
Appearance is a major part of the decision because 560-13 is offered with narrow whitewall and wide whitewall presentations. Wheel width should also be checked carefully, since the available products do not all share the same rim-width range, and that can influence which bias-ply option suits the car’s actual wheels.
What sidewall styles are available for 1967 Triumph Sports Six tires?
The sidewall styles available for the 1967 Triumph Sports Six vary by tire size and construction. The 155R13 radial options are blackwall tires, while the 560-13 bias-ply options include narrow whitewall and wide whitewall versions, giving the car very different visual presentations depending on the size chosen.
That makes sidewall style part of the overall tire-selection strategy, not just a cosmetic afterthought. A blackwall radial leans toward a more understated sporting look, while whitewall bias-ply tires create a stronger vintage feel, so the best match depends on how the Sports Six is being restored, displayed, or driven.
What brands offer tires for the 1967 Triumph Sports Six?
Tires for the 1967 Triumph Sports Six are available from Michelin, Dunlop, BFGoodrich, and Firestone. Michelin and Dunlop appear in the 155R13 radial size, while BFGoodrich and Firestone appear in the 560-13 bias-ply size, so brand choice is tied closely to the construction path being considered.
That means the first selection step is choosing the correct size and tire type for the car rather than starting with brand alone. Once that is settled, the owner can compare tire series, sidewall styles, and wheel-width suitability to narrow the field in a way that supports the car’s intended appearance and use.
Restoration & Appearance
Which tire should I choose for a period-style 1967 Triumph Sports Six?
For a period-style 1967 Triumph Sports Six, the 560-13 bias-ply fitment is the natural starting point because it preserves the vintage numeric size format and supports traditional whitewall presentations. That keeps the tire choice visually aligned with the car’s era in a way that a modern-looking radial often does not.
From there, the decision becomes more specific: narrow whitewall or wide whitewall, and which bias-ply tire series best suits the car’s finished look. Owners pursuing exact restoration standards should compare their car against marque references and historical documentation before settling on one sidewall treatment as the final appearance choice.
How does tire construction affect the appearance of a restored 1967 Triumph Sports Six?
Tire construction changes the visual character of a restored 1967 Triumph Sports Six more than many owners expect. A 560-13 bias-ply tire carries a distinctly vintage sizing language and is available with whitewall treatments, while a 155R13 radial presents the car with a more modern blackwall, European-style tire look.
That difference can shape the car’s stance and overall presentation even before the car moves. Owners who want a restoration-oriented appearance often stay close to the bias-ply path, while those prioritizing a radial-format setup may accept a less traditional look in exchange for a different tire construction and style direction.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1967 Triumph Sports Six?
Yes, modifications can affect tire fitment on a 1967 Triumph Sports Six even when the tire size itself looks appropriate on paper. Wheel-width changes, aftermarket wheels, suspension alterations, and body or steering adjustments can all influence how a 560-13 bias-ply or 155R13 radial actually sits and clears on the car.
That is especially important on a compact sports car where small changes can have a noticeable effect. A Sports Six with changed wheels or ride height should be checked for turning clearance, fender space, and overall wheel compatibility before a new tire is selected simply because it matches the expected 13-inch fitment.
What should I inspect before driving a 1967 Triumph Sports Six on new tires?
Before driving a 1967 Triumph Sports Six on new tires, inspect the wheels for damage, confirm the tire is seated properly, and make sure inflation is set correctly for the chosen tire. It is also wise to look over the suspension, steering components, and alignment condition so the new tires start life on a sound chassis.
A short initial road check can reveal rubbing, pull, vibration, or other fitment-related issues early. Collector cars that see light use deserve extra attention here because aging bushings, worn shocks, or old wheel hardware can affect how even a correctly sized 560-13 or 155R13 tire behaves once the car is moving.
How should 560-13 tires on a collector 1967 Triumph Sports Six be maintained?
560-13 tires on a collector 1967 Triumph Sports Six should be maintained with regular pressure checks and routine visual inspection for cracking, bulges, cuts, uneven wear, or slow air loss. Because collector cars are often driven infrequently, tire condition can age out before tread is actually used up.
Storage conditions matter almost as much as mileage on a vintage-size bias-ply tire. Keeping the car away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve the sidewalls, and occasional inspection of wheel condition and valve hardware adds another layer of caution before the next road outing.