Magnetic hall effect sensor for real distance measurements based on motorcycle front wheel rotation.Compatible with Terrain Command III Hub (Kit) and BMW Control Hub (Kit).Compatible with motorcycles, which have pre-drilled brake caliper for installation of a front wheel sensor treaded for M8 (this is a standard tread size for front wheel sensor).The sensor is based on hall effect technology – almost limitless life span and best possible reliability. Standard front wheel magnetic sensors are simple reed switches.What is included:a. magnetic hall effect sensor with locking nutb. 2x simple neodymium magnet disk 10x1mm (1 to use for installation, 1 spare)c. 5x zip ties to secure sensor cable.If your brake disk is pre-drilled for sensor magnet installation, please check the product 9,5mm magnet with circlip and 9mm magnet with circlip – magnets with circlips should be preferred in that case.