Used Spinning® BIO HR™ Wireless Computer Some Things Not included (See Description) OSFA:Silver Mantic Alloy Barrel Provides Maximum Thanks to its croc Mantic Alloy Barrel Provides Maximum Strength control and comfort they need to give their best performance Countdown Timer: Can be set for distance or time Heart Rate Monitor: The cycling heart rate monitor features a strap coded specifically for each individual computer Wireless Cadence Sensor: For accurate tracking of revolutions per minute Batteries Included: For all components Automatic Start Stop: The monitor automatically starts when exercise begins and turns off 4 minutes after exercise stops Missing Items: 2 AAA Batteries Magnet Round handlebar mount 2 Zip Ties Not Included wireless monitor on our NEW Spinning® BIO HR™ Wireless Computer will continuously display the following: Cadence Speed Distance* Time Calories Heart Rate Pulse *User can toggle between both This unique design contains exclusive features: Easy Installation: Adapter fits Active and Performance Series bikes