Garmin Speed Cadence Sensor Replacement Parts Kit [010-10729-00]
Original price $10.91
Current price $6.99
Monitor your pedaling cadence and wheel speed as you ride. You can even use it to train indoors because the sensor attaches to your rear wheel.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.