Sigma BC 5.16 Wired Bicycle Speedometer Computer

The Sigma BC 5.16 is a wired bicycle computer designed for riders who want essential cycling data without unnecessary complexity. It tracks five core functions — current speed, trip distance, total distance (odometer), clock, and riding time — and displays them on a crystal-clear screen that is easy to read at speed. A single-button interface keeps operation simple: press to scroll through functions, or enable the Automatic Function Scan mode to have the display cycle through readings on its own. The entire unit is waterproof, so it performs reliably through rain, puddles, and general wet-weather riding.

Installation is entirely tool-free, with a mount that attaches to the handlebar or stem. The wired connection to the fork-mounted speed sensor ensures consistent, interference-free data pickup without the need for wireless pairing or additional sensor batteries. Programming the computer for your wheel size is straightforward, and the compact head unit adds minimal weight or visual clutter to the cockpit. For cyclists who want a dependable, affordable computer that covers the basics and stays out of the way, the BC 5.16 delivers exactly that.