Polar Cadence Sensor BT THULE Freehub Body Compatibility: 11-/12-speed SRAM

Freehub Body Compatibility: 11-/12-speed SRAM XD

When you need the freedom of movement

Trail version sock – Extra cushioning and support in the foot area

- WING  DESIGN PROVIDES ADDED WRIST SUPPORT

Polar Cadence Sensor BT THULE Freehub Body Compatibility: 11-/12-speed SRAMBoost your cycling performance and find out what your most efficient pedaling rate is. The sensor works with Bluetooth Smart technology and consumes only a little energy. You can later analyze your training at the Polar Flow web service. Small and light design with firm bike attachment Compatible with iPhone 4S and later, and with selected Android devices including Samsung Galaxy S3 and S4 using Android 4. 3 or later.