Image 3: A better version of a spindle mounted Speed Sensor. Note the magnets are not exposed and the HEF is inside.
Image 4: The improved Speed Sensor installed.
Image: 2 Bottom Bracket spindle mounted Speed Sensor. Note the small magnets. This is the same as in image 1. The HEF is mounted in the wired bracket.
Image 1: Bottom Bracket spindle mounted speed sensor. Note the small magnets.
