Cat Eye Astrale 8 Bike Computer CC-CD200N Cadence CycloComputer. opened and has not been hooked up to a bike. Cateye Astrale 8 CC-CD200, a wired cadence cycling computer designed to provide precise and essential data for the avid cyclist. This compact yet robust device offers a wealth of features including current speed, average speed, maximum speed, odometer, trip distance, trip distance 2, elapsed time, and cadence, all displayed on an easy-to-read screen. The dual tire size feature allows you to switch between bikes effortlessly, making it a versatile choice for those who own multiple rides. Whether you're training for a race or just out for a leisurely ride, the Astrale 8 ensures that all your cycling metrics are just a glance away.