DAYTONA, active sensor for VELONA, ASURA and NANO2 speedometer and NANO2 gear meter. 

If your bike has no electronic Tacho signal you can adapt the Velona and Asura Speedometer with the Daytona active sensor. No magnet needed! The sensor uses a screw head or screw end at the chain sprocket or from the brake disc for reference.

This is a universal sensor for Daytona Gauges. Will work on ANY motorcycle (or vehicle for that matter)

Manual, click HERE