“The sensor works well and the reasons I am only giving 4 stars are, it is quite difficulty to fit onto the wheel hub given all the spokes. I don’t plan to remove it until the battery needs replacing. Also I had some issues initially with Bluetooth to my iPhone X and had to simply turn Bluetooth off and on to get it connected. The wahoo app is perfect for my simple needs ie speedo and distance. The ability to Dropbox fit file and then import into Garmin connect is great too.”