If the spoke magnet should get lost, it can simply be ordered from us as a single spare part. The O-Synce speed magnet is compatible with all O-Synce bicycle computers and those of other manufacturers. In addition, it can be easily and quickly attached to all commercially available spokes without tools using the large knurled screw. Another plus is the plastic/aluminium design of the O-Synce speed magnet. This means that it is no longer susceptible to overtightening of the thread.