Lezyne speed and cadence sensor
Advanced 2 in 1 speed and cadence sensor conforms 100 to bluetooth smart standards for max compatibility powerful rare earth magnet provides wider engagement spacing durable lightweight polycarbonate construction with translucent body and led indicators adjustable swingarm and versatile mounting system replaceable cr2032 coin cell battery optimized for long lasting use specification weight speed and cadence sensor 26g magnet 6g colours black