STRADA cadence Cycle Computer CC-RD200 I've had this attached to my bicycle for at least 5 years. A part of the protruding section that attaches the cadence sensor has broken off. Also, the wheel magnet is not included. Please be aware of this before purchasing. ● Wired 2-sensor model that can measure cadence (pedal RPM) ● Small, slim body and a display screen with large fonts for instant confirmation ● Easy to install and adjust, speed sensor measures from the rear wheel (no tools required) Wheel magnet is not included. For those who already have one, or have a spare. Please purchase. ※ Note: The mounting size is suitable for brackets with pipes of 22-31.8mm in diameter, and sensors with pipe shapes of 15-36mm, but it may not be possible to install on special shapes or locations.