If you bought a Koso gauge for your custom build, you know they include a clunky "universal" metal bracket to mount the speed sensor. Replace that bulky bracket with something small and discrete to compliment your awesome build.
This will work with all Koso gauge speed sensors. Reference the picture above to verify you have the same style sensor. Sensor diameter is 12mm. The housing will mount to many modern sport bike forks where the front fender would be attached. Mounting screw used is an M6 (included). Set screw from your Koso gauge bracket can be used on this as well (M5).
3D printed in-house using ASA/ABS material.