The 1971 Bentley T Series belongs to an era when Bentley still delivered formal British luxury with understated styling and substantial road presence. Buyers restoring or maintaining one of these cars often want the tire to support that quiet, dignified character as much as basic fitment. The 1971 Bentley T Series uses an 815-15 bias-ply tire on a 15-inch rim, so the primary decision is less about multiple sizes and more about selecting the right presentation within that original-style format. Available choices include a narrow whitewall or a whitewall-redline treatment in BFGoodrich's Silvertown Classic Bias Ply series. That makes wheel confirmation, appearance goals, and road-use expectations the key points to settle before installation.
Which Tire Size Is Right for The 1971 Bentley T Series
The 1971 Bentley T Series uses one primary tire size: 815-15. It is a bias-ply fitment for a 15-inch rim, and the same size applies to the covered Base sub-model, so the main choice is not between different sizes but between sidewall appearance, product details, and whether the car still has the wheel setup intended for this fitment.
An 815-15 is a numeric bias-ply size, with the 8.15 indicating the tire's nominal section width in inches and the 15 identifying the wheel diameter. On the 1971 Bentley T Series, this size preserves the traditional bias-ply construction associated with the car's original-era fitment approach and overall visual stance. Available examples in this size include BFGoodrich Silvertown Classic Bias Ply tires with either a narrow whitewall or a whitewall-redline sidewall treatment. That makes 815-15 the size to evaluate when the goal is maintaining proper vintage sizing while still choosing the appearance that best suits the car.
Fitment is straightforward for the 1971 Bentley T Series because the covered sub-model uses the same primary tire size. Checking the exact sub-model still matters, but here the tire decision centers more on sidewall style and wheel confirmation than on navigating multiple fitments.
1
1971 Bentley T Series Base
The 1971 Bentley T Series Base uses the same 815-15 bias-ply fitment as the overall model. That keeps selection focused on choosing the preferred period-style sidewall presentation and confirming that the car still wears the proper 15-inch wheel setup for this size.
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 1971 Bentley T Series Tires for Sale
Available 815-15 options center on BFGoodrich's Silvertown Classic Bias Ply series, with a choice between narrow whitewall and whitewall-redline sidewall treatments. The products also share the same 15-inch rim diameter and 5.00 to 6.50 inch rim-width range, making appearance the main comparison point.
These FAQs cover 1971 Bentley T Series tire size, 15-inch rim fitment, bias-ply construction, sidewall choices, restoration-oriented selection, and the checks worth making before putting a collector Bentley back on the road.
Tire Size & Fitment
What tire size fits a 1971 Bentley T Series?
The 1971 Bentley T Series uses an 815-15 tire size. This is a numeric bias-ply fitment mounted on a 15-inch rim, and it is the primary size associated with the model covered here.
That means the first step is confirming that the car still has the correct 15-inch wheels and has not been changed to a different wheel or suspension setup over the years. Once that is established, the real choice becomes selecting the sidewall style and product details that best match the car's appearance and intended road use.
What size rim does a 1971 Bentley T Series use?
The 1971 Bentley T Series uses a 15-inch rim with its 815-15 tire size. Available 815-15 products in this fitment are built for a 15-inch wheel and call for a rim-width range of 5.00 to 6.50 inches.
Rim diameter is the first point to verify because a 15-inch tire must be matched to a 15-inch wheel. It is also worth checking actual wheel width before installation, especially on a long-owned luxury car that may have had wheel changes at some point in its life.
Does the 1971 Bentley T Series Base use the same tire size?
Yes. The 1971 Bentley T Series Base uses the same 815-15 bias-ply tire size as the overall model fitment covered here. There is no separate primary size change between the model and the Base sub-model.
That keeps the buying decision relatively simple, since fitment is not divided by multiple sub-model tire sizes. The practical question is whether the car remains on the proper 15-inch wheels and whether a narrow whitewall or whitewall-redline presentation better suits the car's restoration style and use.
Choosing the Right Tire
What should I consider when choosing a 815-15 tire for a 1971 Bentley T Series?
Start with the basics: the 1971 Bentley T Series uses an 815-15 bias-ply tire on a 15-inch rim. Available products in this size share the same general fitment pattern, so the key differences are sidewall presentation and product specifications such as rim-width range, weight, and load figure.
A luxury car from this period often benefits from a tire choice that matches the owner's appearance goals as closely as the fitment. Confirm the wheel width, review the 5.00 to 6.50 inch rim-width requirement, and consider whether a narrow whitewall or whitewall-redline better suits the way the car is restored and driven.
What sidewall styles are available for 1971 Bentley T Series tires?
The available 815-15 tires for the 1971 Bentley T Series include a Narrow Whitewall option and a Whitewall-Redline option. Both are bias-ply BFGoodrich Silvertown Classic Bias Ply tires, so the visual treatment is the main distinction rather than a change in basic fitment.
That gives the owner a choice between a more restrained traditional whitewall look and a more distinctive sidewall treatment that adds a redline accent. Appearance matters on a formal luxury car, so it helps to compare the tire against the car's paint, wheel covers, and restoration direction before settling on one style.
What tire series are available for the 1971 Bentley T Series?
The available 815-15 products for the 1971 Bentley T Series are offered in the BFGoodrich Silvertown Classic Bias Ply series. Within that series, the visible variation comes from the sidewall treatment rather than a switch to different constructions or multiple unrelated tire lines.
That makes the series choice straightforward and shifts attention to how each sidewall style supports the car's overall presentation. Because both options share the same basic size and construction, the better comparison points are appearance, wheel-width compatibility, and whether the tire complements a restoration-focused or road-use-focused plan.
Restoration & Appearance
Which tire should I choose for a period-style 1971 Bentley T Series?
For a period-style 1971 Bentley T Series, the starting point is the correct primary size and construction: 815-15 in a bias-ply tire. That keeps the car in the vintage sizing system associated with its era and preserves the formal visual character many owners want from a restoration-oriented Bentley.
From there, the decision comes down to sidewall presentation and how closely the finished look matches the car's trim and restoration goals. A narrow whitewall usually gives a restrained traditional appearance, while a whitewall-redline introduces a more assertive accent, so reference photos and marque-specific guidance can be helpful when exact authenticity matters.
Does correct tire fitment matter for a 1971 Bentley T Series restoration?
Yes, correct tire fitment matters on a 1971 Bentley T Series restoration because size, construction, and sidewall treatment all influence the car's stance and overall visual balance. Using the proper 815-15 bias-ply format helps preserve the proportions expected of a full-size British luxury car from this period.
Even when the tire looks right at a glance, wheel diameter and wheel width still need to be checked before installation. A restoration-minded owner should also think about how the sidewall style works with the car's finish and trim, especially since appearance can shift noticeably between a plain whitewall and a whitewall-redline treatment.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1971 Bentley T Series?
Yes. Even though the primary fitment for a 1971 Bentley T Series is 815-15 on a 15-inch rim, modifications can change what actually works on the car. Wheel substitutions, altered suspension height, or body and brake changes can all affect clearance and the suitability of the original-size tire.
That is why an older Bentley should be checked as it sits today, not only as it may have left the factory decades ago. Measure wheel diameter and width, inspect steering and fender clearance, and look for any signs that replacement wheels or suspension parts have changed the space available around the tire.
What should I inspect before driving a 1971 Bentley T Series on new tires?
Before driving a 1971 Bentley T Series on new tires, inspect the wheels for the correct 15-inch diameter and suitable width, then confirm that the tires are seated properly and inflated appropriately for the application. It is also smart to check for interference at full steering lock and through normal suspension movement.
Collector cars often sit for long periods, so the rest of the chassis deserves attention too. Look over suspension bushings, steering components, brake condition, and wheel fasteners, then inspect the tires regularly for air loss, cuts, bulges, or sidewall cracking once the car returns to road use.
How should 815-15 tires on a collector 1971 Bentley T Series be maintained?
An 815-15 tire on a collector 1971 Bentley T Series should be maintained with regular pressure checks, visual inspections, and periodic review of tread and sidewall condition. Bias-ply tires also deserve close attention after storage, since long stationary periods can be harder on collector vehicles than steady use.
Storage conditions matter almost as much as mileage on a seldom-driven Bentley. Keeping the car away from prolonged sunlight, heat, moisture, and ozone sources helps protect the tires, while occasional inspection for cracking, flat spotting, bulges, and slow air loss helps catch problems before the next road outing.
