2021 Aston Martin DB11 V8 Coupe
The 2021 Aston Martin DB11 V8 Coupe tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2021 Aston Martin DB11
Tire geometry â 255/40R20
The 255/40R20 fitted to the 2021 Aston Martin DB11 has a section width of 255mm and an aspect ratio of 40%, mounted on a 20-inch rim. That gives a sidewall height of 102.0mm (4.02") and an overall outside diameter of 712.0mm (28.03"). At highway speed this tire completes roughly 447 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2021 Aston Martin DB11 while keeping the speedometer accurate, target a 265/34R21 (plus-one). For a softer ride or winter setup, a 245/47R19 (minus-one) keeps the overall diameter within Âą3% of stock, which is the industry tolerance for ABS and stability control to stay calibrated.
Wheel fitment specs
The 2021 Aston Martin DB11 uses a 5x114.3 bolt pattern with a 68.1mm hub bore. Safe rim width range for the OEM tire is 8.5J â 9.5J, and offsets in the ET40 â ET50 window will clear suspension and fender without rubbing on most setups.
Staggered setup notes
The 2021 Aston Martin DB11 ships staggered: 255/40R20 up front and 295/35R20 on the rear. That is a 295mm vs 255mm width difference â do not rotate front-to-rear, and replace tires in axle pairs to keep ABS and traction control balanced.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2021 Aston Martin DB11 is printed on the driver-side door jamb sticker â always defer to that value, not to the maximum pressure printed on the tire sidewall. Check pressure monthly and before long trips; under-inflation by 20% can reduce tread life by 25%.
Fitment Specifications
| Engine & Trim | Tire Size | Rim Size | Offset (ET) |
|---|---|---|---|
| V8 Coupe | 255/40R20 Rear: 295/35R20 | 20" x 9.0 | ET45 |
Frequently Asked Questions
What tire size does the 2021 Aston Martin DB11 V8 Coupe use?
The 2021 Aston Martin DB11 V8 Coupe uses 255/40R20 tires as standard equipment.
What is the bolt pattern of the 2021 Aston Martin DB11 V8 Coupe?
The 2021 Aston Martin DB11 V8 Coupe has a 5x114.3 bolt pattern with a center bore of 68.1mm.
What is the wheel offset of the 2021 Aston Martin DB11 V8 Coupe?
The 2021 Aston Martin DB11 V8 Coupe has a wheel offset of ETET45.