This speed pulse converter will allow to use an electronic speedometer (Daytona, Smiths, Motogadget, Wats Motor...) with the mechanical speedo drive. So you just have to remove the cable and replace it by this sender.
It will fit BMW Boxer motorcycles.
This speed sensor will work with the Daytona, Smiths, Motogadget, Wats, MMB speedometers. It could also work with other eletronic speedometers using 3 wires sender.