The 1970 Aston Martin DB sits at the refined end of the classic grand touring world, blending hand-built British character with the long-legged road manners that made Aston Martin such a compelling marque for collectors. For an owner sorting out tires, the key point is that this car uses 15-inch bias-ply fitments, with 8.25-15 and 815-15 both associated with the model. That keeps the decision centered on traditional construction and period-style presentation rather than a broad shift into modern sizing. Available 815-15 choices add sidewall character through narrow whitewall and whitewall-redline treatments, making appearance, wheel compatibility, and intended use especially important.
Which Tire Size Is Right for The 1970 Aston Martin DB
Two primary tire sizes are associated with the 1970 Aston Martin DB, and both are bias-ply fitments for a 15-inch rim. Because those sizes appear within the DB 6 Mark II coverage, the first step is confirming which size is on the car now and whether the wheels remain in their intended specification. Once that is settled, the real decision becomes choosing the right period-style tire presentation and verifying wheel-width compatibility.
In the size 8.25-15, the 8.25 refers to the tire's nominal section width in inches and the 15 identifies the wheel diameter. This is a traditional bias-ply fitment, which suits the vintage character and period road feel expected from a 1970 Aston Martin DB. That sizing format speaks more to classic tire convention than to modern low-profile measurements, so the emphasis is on proper wheel match and overall stance. It is the kind of fitment an owner would evaluate when preserving a restoration-oriented appearance and keeping the car aligned with its original-era tire construction.
The 815-15 size is another vintage numeric bias-ply format, with the leading number indicating nominal section width and the final number showing a 15-inch rim diameter. On a 1970 Aston Martin DB, it keeps the tire choice rooted in traditional construction rather than modern metric sizing. Available examples in this size come from BFGoodrich in the Silvertown Classic Bias Ply series, with narrow whitewall and whitewall-redline sidewall treatments offering distinct visual character. This size is worth close attention when the goal is to balance classic presentation, wheel-width compatibility, and the look that best suits the car.
Sub-model fitment is straightforward here, but tire choice still deserves a careful look because more than one primary size is associated with the covered application. Checking the exact sub-model helps confirm whether the car should stay with its current bias-ply sizing or whether another listed primary size is the better match.
1
1970 Aston Martin DB 6 Mark II
The 1970 Aston Martin DB 6 Mark II is associated with both 8.25-15 and 815-15 bias-ply tire sizes on 15-inch rims. That makes the selection process less about changing construction and more about confirming the wheel setup, then choosing the size and sidewall treatment that best fits the car's present configuration and visual goals.
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 1970 Aston Martin DB Tires for Sale
Available 815-15 options focus on traditional bias-ply presentation from BFGoodrich in the Silvertown Classic Bias Ply series. The main comparison points are sidewall style, with narrow whitewall and whitewall-redline versions, along with the shared 15-inch rim fitment and 5.00 to 6.50-inch rim-width range.
Owners of a 1970 Aston Martin DB usually need clarity on the correct primary tire size, 15-inch rim fitment, period-style bias-ply choices, and what to inspect before putting a collector grand touring car back on the road.
Tire Size & Fitment
What tire size fits a 1970 Aston Martin DB?
The 1970 Aston Martin DB is associated with two primary tire sizes: 8.25-15 and 815-15. Both are vintage-style bias-ply fitments for 15-inch wheels, and both appear within the covered DB 6 Mark II application rather than as modern radial substitutes.
The practical next step is confirming which size is already on the car and whether the wheels match the intended setup. On a collector car, wheel changes over time are common, so the current rim width, tire clearance, and overall appearance goal should all be checked before choosing between these two primary sizes.
What size rim does a 1970 Aston Martin DB use?
The 1970 Aston Martin DB uses a 15-inch rim diameter with its listed primary tire sizes. Both 8.25-15 and 815-15 are built around a 15-inch wheel, which keeps rim diameter consistent even though more than one tire size is associated with the car.
Rim diameter is only part of the fitment picture, so it helps to verify wheel width as well before choosing a tire. The available 815-15 products are built for rims measuring 5.00 to 6.50 inches wide, and that kind of check is especially worthwhile if the car has been restored, modified, or fitted with replacement wheels.
What does 815-15 mean on a 1970 Aston Martin DB?
On a 1970 Aston Martin DB, 815-15 is a numeric bias-ply tire size. The 815 indicates the tire's nominal section-width class in vintage inch-based sizing, while the 15 refers to the wheel diameter in inches.
That older sizing system does not read like modern metric radial sizes, so it is easy to mistake it for a different format. For an Aston Martin owner, the important point is that 815-15 is a traditional bias-ply fitment, which makes wheel width, sidewall style, and period-style presentation more important selection factors than modern aspect-ratio comparisons.
Choosing the Right Tire
What should I consider when choosing a 815-15 tire for a 1970 Aston Martin DB?
Choosing an 815-15 tire starts with confirming that 815-15 is the size intended for the car's present wheel setup. From there, the main considerations are bias-ply construction, 15-inch rim compatibility, the 5.00 to 6.50-inch rim-width range used by available products, and whether the car's appearance calls for a narrow whitewall or whitewall-redline treatment.
Load capacity can also matter on a grand touring car, and the available 815-15 options carry a 1610@32 psi maximum load figure. Once the fitment basics are verified, the choice becomes more about how the tire will look on the car and whether the wheel width and intended road use suit the selected product.
What sidewall styles are available for 1970 Aston Martin DB tires?
In the available 815-15 fitment for the 1970 Aston Martin DB, sidewall choices include Narrow Whitewall and Whitewall-Redline. Both are offered within the BFGoodrich Silvertown Classic Bias Ply line, so the construction and general vintage character stay consistent while the visual presentation changes.
That makes sidewall style an appearance decision rather than a size change. A narrow whitewall leans toward a restrained touring look, while a whitewall-redline treatment adds a more distinctive period-style accent. The best choice depends on the car's restoration direction, wheel design, and how formal or sporty the finished presentation should feel.
What brands offer tires for the 1970 Aston Martin DB?
The available product selection for this 1970 Aston Martin DB fitment includes BFGoodrich in 815-15. Those tires are offered in the Silvertown Classic Bias Ply series, with the main visible difference centered on sidewall treatment rather than a shift to a different construction type.
Since the brand choice is narrow here, the buyer's comparison is less about switching among several manufacturers and more about selecting the right presentation within the correct vintage size. Matching the tire to wheel width, confirming the car's current setup, and choosing the sidewall style that suits the restoration are the important next steps.
Restoration & Appearance
Which tire should I choose for a period-style 1970 Aston Martin DB?
A period-style 1970 Aston Martin DB should stay centered on its primary bias-ply fitments, which are 8.25-15 and 815-15 on 15-inch rims. That keeps the car aligned with a traditional tire construction and preserves the visual proportions expected from a classic grand touring Aston Martin.
The best choice depends on the wheel setup already on the car and the look the restoration is trying to achieve. If appearance matters as much as fitment, compare sidewall treatment carefully and verify size against the wheels in use, especially on cars that may have received replacement rims during earlier restoration work.
How does tire construction affect the appearance of a restored 1970 Aston Martin DB?
Tire construction plays a major role in the finished look of a restored 1970 Aston Martin DB because the car's primary fitments are bias-ply sizes. A bias-ply tire supports the traditional sidewall shape and overall visual character associated with a classic car of this era.
Appearance is not only about construction, though. Sidewall details such as a narrow whitewall or whitewall-redline can shift the car's presentation from understated touring style to something more visually assertive. For restorations where historical exactness matters, the tire should be compared with marque-specific references and the car's individual restoration goals.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1970 Aston Martin DB?
Yes, modifications can affect tire fitment on a 1970 Aston Martin DB even when the tire size itself is correct. Replacement wheels, changes in wheel width, altered suspension height, and body or brake upgrades can all influence how an 8.25-15 or 815-15 tire sits and clears the car.
A classic Aston that has been in service for decades may not still wear its original wheel setup, so checking the actual rim dimensions is important. Steering clearance, fender clearance, and the tire's visual relationship to the car should all be reviewed before mounting a new set, especially on restored or modified examples.
What should I inspect before driving a 1970 Aston Martin DB on new tires?
Before driving a 1970 Aston Martin DB on new tires, inspect the wheels for correct diameter and width, make sure the tires are inflated properly, and confirm that there is no interference at the fenders or steering components. A close look at suspension condition and alignment is also worthwhile on a collector car.
Road readiness involves more than the new tires themselves. Brake condition, wheel fastener security, and smooth bead seating should be checked before regular use, and the car should be driven carefully at first to confirm that the chosen fitment behaves as expected with the vehicle's present chassis and wheel setup.
How should 815-15 tires on a collector 1970 Aston Martin DB be maintained?
815-15 tires on a collector 1970 Aston Martin DB should be maintained with regular pressure checks, periodic inspections for cracking, bulges, cuts, and uneven wear, and close attention to any sign of air loss. Bias-ply tires also benefit from routine visual checks because many collector cars spend long periods parked.
Storage conditions matter just as much as road use on a classic Aston Martin. Keeping the car away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve tire condition, and occasional movement can help avoid flat-spotting during long storage intervals. Any questionable tire should be evaluated before extended driving.
