Anti-lock braking system

An anti-lock braking system (ABS) is a safety system that prevents the wheels of a vehicle (for example car, motorcycle) from locking up when it is strongly braked. The goal is to keep the vehicle controllable, because a wheeled vehicle can only be safely steered when its wheels are not skidding.

Anti-lock Braking System Media

• 

  Antilock Braking System

• 

  ABS brakes on a BMW motorcycle

• 

  A car with a sticker in the rear conveying about having ABS and EBD features

• 

  ABS Sensor GM

• 

  Partially disassembled four-channel hydraulic control unit containing motor, pump and valves

• 

  Photo of an ABS module

• 

  The ABS sensor of a BMW K 1100 LT

• 

  A toothed-wheel ABS sensor. These are the front brake discs on a BMW R1150GS. The toothed ABS ring indicates that this bike was manufactured before November 2002.

• 

  Another toothed-wheel ABS sensor. This is on a BMW K75 motorcycle.