Two wireless sensors deliver comprehensive ride data without the complexity of magnet-based systems. The Garmin Speed Sensor 2 and Cadence Sensor 2 Bundle combines hub-mounted speed tracking with crank arm cadence measurement, eliminating exposed parts and alignment issues that plague older sensor designs. Rubber bands secure both units in seconds, and dual wireless protocols broadcast to any ANT+ or Bluetooth device within range.

The Speed Sensor 2 mounts to either wheel hub and self-calibrates through GPS-enabled Garmin devices, calculating accurate wheel circumference automatically during your first ride. Internal memory stores distance data even without a paired head unit, which preserves mileage totals when you forget to start your computer or ride through areas with weak GPS signal. The odometer function tracks cumulative distance for maintenance scheduling on chains, cassettes, and bearings.

Cadence measurement comes from the crank-mounted sensor that counts pedal strokes per minute through accelerometer detection. Installation positions the sensor on the non-drive side crank arm where it clears your shoe and frame during the pedal stroke. The magnet-free design means no spoke-mounted magnets to align, no frame-mounted pickup units, and nothing to knock out of position on rough terrain or during wheel changes.... Read More