Steering; Brakes - Aston Martin DB9 2009 Owner's Manual

Steering

Rack and pinion, servotronic speed-sensitive power-assisted
steering. Column tilt and reach adjustments.
Turns 3.0
lock to
lock
Turning Circle 37.5 ft. (11.5 m) (Curb to Curb)
Toe-In Front 0.08° (± 0.07°)
(5' (±4'))
Rear 0.33° (+ 0.17° / – 0.0°)
(20' (+10' / - 0.0'))
With the vehicle at it's design weight. Refer to
your Aston Martin Dealer.
Suspension
Front Aluminum independent double wishbone
incorporating anti-dive geometry. Coil over
aluminum monotube dampers and anti-roll bar.
Rear Aluminum independent double wishbone
incorporating longitudinal control arms, coil over
aluminum monotube dampers and anti-roll bar.

Brakes

Ventilated and grooved steel rotors all round.
Front Rotors 13.9 in. (355 mm) diameter
Rear Rotors 12.9 in. (330 mm) diameter
Calipers Radial-mounted four-piston monobloc.
Parking Lever and cable operated independent
brake parking brake callipers on each rear brake
rotor.
Anti Lock Braking System (ABS), Electronic Brakeforce
Distribution (EBD), Emergency Brake Assist (EBA), Dynamic
Stability Control (DSC) and Traction Control (TCS).
12.5