The TYchDK Motorcycle Oxygen Sensor KYY-48Y is a must-have accessory for your De Motorbike first-line oil line system. This four-wire fit sensor is designed to optimize engine performance and prevent exhaust emissions. It's easy to install and requires minimal tools and effort. The sensor features high precision and durability, ensuring accurate and consistent oxygen readings. With its compact and lightweight design, it's an excellent addition to any motorcycle, making it easier to change components without interrupting your ride. Say goodbye to uneconomical idling and hello to a cleaner, greener environment.