Get Maintenance and Technical Data -> Wheels and Tires Guide for Aston Martin Dbx SUV 2020

Wheels and Tires

Brakes

Wheel and Tire Information

Foot Brake

Wheel Size

Tire Size

Tire Pressure

Front

Rear

Front

Rear

10J x 22

285/40/R22

325/35/R22

195/65/R21

2.6 Bar

38 Psi

Rotor Construction

Diameter

2-piece ventilated

rotor

2-piece ventilated

rotor

11.5J x 22

6.5j x 21

2.6 Bar

38 Psi

410mm

16.1 inches

Six Piston

390mm

15.3 inches

Spare

4.2 Bar

61 Psi

Calipers

Single Piston with

Integrated EPB

Tire Loading

Tires installed to this vehicle shall have a maximum load rating

not less than 1060 kg (2337 lbs) front and 1180 kg (2601 lbs) rear,

or a load index of 110 (front) and 114 (rear).

Park Brake

Integrated electric park brake in each rear brake caliper.

Chassis Features

• Anti-Lock Braking System (ABS).

• Hydraulic Brake Assist (HBA).

• Electronic Brake Force Distribution (EBD).

• Four-stage Electronic stability Program (ESP).

• Electronically controlled rear differential (E-Diff).

• Front and rear 48V electronic Active Roll Control (eARC)

system.

• Height adjustable and self levelling air suspension.

Maintenance and Technical Data 11.15

Tire Pressures

Tire Information

Make sure that correct tire pressures are carefully maintained.

Road holding, steering, braking and tire wear are especially

vulnerable to incorrect tire pressures.

Tires of the correct type, manufacturer and dimensions, with

correct cold inflation pressures are an integral part of every

vehicle’s design. Regular maintenance of tires contributes not

only to safety, but to the designed function of the vehicle.

Check tire pressures regularly and before starting any journey,

and adjust accordingly.

Road holding, steering and braking are especially vulnerable to

incorrectly pressurized, badly installed or worn tires.

Tire pressures increase slightly when the tires are hot. For an

accurate reading, tire pressures should be checked when the tires

are cold. After adjusting the tire pressures, make sure that the

valve caps are securely replaced to provide an additional air seal

and to prevent the ingress of dirt.

Tires of the correct size and type, but made by different

manufacturers can have widely varying characteristics.

Damage

Because of the high performance potential of this vehicle,

Aston Martin strongly recommend replacement of any damaged

or worn tire.

Wheel Bolt Torque

For wheel bolt torque (Refer to ’Wheel Bolt Torque’, page

11.59).

Tires should be examined at regular intervals for wear and

damage. Inspect the tire treads and sidewalls for damage, i.e.

bulges in the tread or the sidewalls, cracks in the tread groove and

separation in the tread or the sidewalls. If damage is observed or

suspected have the tire inspected by a tire professional.

Wheel Alignment

For the most up to date wheel alignment values, contact your

Aston Martin dealer

Stones or other objects which have become lodged in the tire

treads should be carefully removed.

11.16 Maintenance and Technical Data

Flat Spots

Running-In New Tires

It is a characteristic of high performance tires that temporary ’flat When new tires have been installed, speed should be limited,

spots’ may develop if the vehicle is left standing in high or low

ambient temperatures for any length of time.

particularly during the first 80 km or so of driving. Fast cornering,

hard braking, and harsh acceleration should also be avoided

during this period.

These ’flat spots’ will manifest themselves as minor vibrations

when the vehicle is first driven from cold. As the tires warm up to Tread Wear Marks

operating temperature, normal tire shape should be restored and

the vibrations cease. If vibrations persist, consult your

Tread wear marks (A) are incorporated into the construction of all

tires. These marks are integral moulded ribs spaced at regular

intervals around the circumference of the tire and extend across

the full width of the tread, in all primary grooves.

Aston Martin Dealer.

Age

Local regulations on tire life may apply.

Tires degrade over time, even when they are not being used. It is

recommended that tires generally be replaced after six years of

normal service. Heat caused by hot climates or frequent high

loading conditions can accelerate the aging process.

New Tires

Each wheel and tire unit must be balanced dynamically and

measured for Radial Force Variation (RFV) to make sure of

efficient steering, optimum tire wear and maximum ride comfort.

Because of the potentially high speeds, it is essential that wheel

balancing is carried out when new tires are installed. Contact

your Aston Martin Dealer for more information.

When a tire has worn causing one or more of the marks to be

flush with the outer face of the tread the tire has reached its wear

limit. It then becomes illegal in certain countries and must be

replaced.

Maintenance and Technical Data 11.17

Summer Tires

Winter Tires

Summer tires should be used if the highest level of dynamic

performance is required and are best used for temperatures

Winter tires are designed for use in temperatures between -35°C

and +10°C. These tires have tread pattern and rubber

greater than 10°C. If the vehicle is used in temperatures below compound that has been developed to maximise traction on

this for extended periods of time, then All-Season or Winter tires snow and asphalt at low temperatures. This does mean that

should be considered.

winter tires have a lower maximum speed rating of 240 km/h

(150 mph). In some countries it is a legal requirement to display

an appropriate speed limit warning sticker or use the winter tire

speed limit function (Refer to ’Vehicle Settings’, page 10.4).

The tires are also of different sizes on the front and rear axles,

therefore complete wheels cannot be swapped between axles.

All Season Tires

Snow Traction Devices

All-Season tires are best used in temperatures between -10°C and

+15°C. These tires are suitable for mild off-road use as well as on

road use and an optimal tire for use in Terrain and Terrain+

modes. All-Season tires do have some winter driving capability,

but for improved traction on snow winter tires are

recommended.

Warning: The maximum speed when using snow traction

devices is 48 km/h. Remove the snow traction devices

immediately when the roads are clear of snow.

These are for temporary use when driving in heavy snow

conditions. Snow traction devices should only be installed to the

rear wheels. For more information regarding the correct snow

traction device to fit to your vehicle, contact your Aston Martin

Dealer.

11.18 Maintenance and Technical Data

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Maintenance and Technical Data -> Wheels and Tires for Your Aston Martin Dbx SUV 2020

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