Not sure. I just installed a Rox 9.0 to replace a Cateye Astrale 8. The Cateye cadence magnet works for the Rox. I can't say about the speed sensor because the Cateye is rear wheel and the Rox is front wheel. I've left the Cateye installed until I figure out the much more complicated Rox. Make sure the speed sensor is close enough to the magnet. I lost about 6 miles of a 64-mile ride this weekend because I didn't notice that the speed sensor had move about 1mm during our turnaround stop and it wasn't registering speed or mileage. I little nudge at speed got it working again.