four wheel drive TESLA MODEL X 2019 Owner's Manual 

TransmissionTypeSingle speed fixed gearOverall Final Drive RatioSmall motor: 9.325:1
Large motor: 9.734:1Reverse GearReverse direction of motor, limited to
24 km/h
Steering
TypeRack and pinion with electronic power steering, speed sensitiveNumber of turns lock to lock2.05Turning Circle (curb to curb)12.44 meters
Brakes
Type
4-wheel anti-lock braking system (ABS)
with Electronic Brake Force Distribution,
Integrated Advanced Stability Control and
Electronic Accelerator pedal actuated
regenerative braking systemCalipersFour piston fixedRotor Diameters (ventilated)Front: 13.98”/355 mm
Rear: 14.37”/365 mmFront Rotor thicknessNew: 1.26”/32 mm
Service limit: 1.18”/30 mmRear Rotor thicknessNew: 1.10”/28 mm
Service limit: 1.02”/26 mmFront Brake Pad Thickness (excluding back plate)0.393”/10 mmRear Brake Pad Thickness (excluding back plate)0.354”/9 mmParking brakeElectrically actuated parking brake
calipers
Subsystems
Specifications195