If you have a wired Origin8 cyclocomputer, then you will need this Origin8 wiring kit for wired bike computers.
This wiring kit includes the bracket with (155cm) wired sensor, the screw magnet, and four cable ties to get it snug & secure. The kit is a perfect fit for Origin8 wired computers.
Please note that this mounts on the handlebar and not on the handlebar stem.