ROCKBROS RPM Cycling Speed Sensor for Road, Gravel and Mountain Bikes

Speed/Cadence Measurement - Connect via Bluetooth to compatible training apps, track, and capture real-time cycling speed and cadence. Cycling Cadence - The number of revolutions per minute (RPM) you complete at a given speed. By learning how to increase and train your cycling cadence, you’ll improve your cycling efficiency and pedal for longer and faster. Dual Band Technology - Integrated with ANT+ and Bluetooth Smart capabilities, the RPM speed and cadence sensors can connect to smartphones, tablets, and bike computers. Sleek and Easy to Install - Universal fit for most bikes and frame sizes. The cadence sensor attaches to the bike’s crank arm or shoe; the speed sensor attaches to the bike's wheel hub. Mounting accessories included. One-Click Mode Switching without Interference - Simply rotate the back cover to switch modes without needing to remove the cover and restart. The front LED lights blue in speed mode, green in cadence mode, and red in low battery situations.