Tesla S Owner's Manual page 179

Subsystems
Transmission
Type
Overall Final Drive Ratio
Reverse Gear
Steering
Type
Number of turns lock to lock
Turning Circle (curb to curb)
Brakes
Type
Calipers
Rotor Diameters (ventilated)
Front Rotor thickness
Rear Rotor thickness
Front Brake Pad Thickness (excluding back plate)
Rear Brake Pad Thickness (excluding back plate)
Parking brake
178
Single speed fixed gear
Small motor: 9.325:1
Large motor: 9.734:1
Reverse direction of motor, limited to
15 mph (24 km/h)
Rack and pinion with electronic power
steering, speed sensitive
2.05
38.8 ft (11.8 m)
4-wheel anti-lock braking system (ABS)
with Electronic Brake Force Distribution,
Integrated Advanced Stability Control and
Electronic Accelerator pedal actuated
regenerative braking system
Four piston fixed
Front: 13.98"/355 mm
Rear: 14.37"/365 mm
New: 1.26"/32 mm
Service limit: 1.18"/30 mm
New: 1.10"/28 mm
Service limit: 1.02"/26 mm
0.393"/10 mm
0.354"/9 mm
Electrically actuated parking brake
calipers
Model S Owner's Manual