The Vemo ABS Ring - V20920001 is a product used in automotive systems to measure wheel speed and provide information to the vehicle's anti-lock braking system (ABS). It is a circular ring made of durable materials and has teeth on its outer edge. The ring is mounted on the wheel hub and rotates with the wheel. As the teeth on the ring pass by a sensor, it generates a signal that is used by the ABS to determine the speed of the wheel. This information is crucial for the ABS to properly control the braking system and prevent wheel lock-up during sudden braking. The Vemo ABS Ring - V20920001 is a reliable and high-quality component that ensures the safe and efficient operation of the vehicle's ABS.