The Sigma BC 12.0 WR odometer can be used on two bikes ( note: bracket, sensor, magnet and fixing material for one bike are included. For a second bike, accessories must be purchased separately ). The monthly overview of the total values in a kind of training diary is also practical. The BC 12.0 is available in wireless (WL) and wired (WR) versions. If you don''''t want to do without the cadence display, you can use the BC 12.0 WL CAD.