Sigma BC500 Computer w/XL Harness

Sigma Cycle Computers consist of a display unit that mounts on the bike's handlebar, and a sensor mounted to the front wheel which measures your speed and distance travelled. This allows the computer to record and display a variety of useful information. Each Cycle Computer model is capable of varying functions - see the comparison chart below for a detailed breakdown of the differences between each model. All Sigma Cycle computers we sell come include the handy "Twist-Lock-System" mounting bracket for easy and secure on & off. The display screen is large and easy to read, and you can either set it to auto-scan through all measurements, or manually switch through the individual functions with the push of a button.