SO GOOD
A single Bluetooth sensor detects both cadence and speed, making Topeak’s offering relatively painless to set up. It displays up to five metrics simultaneously, and it’s easy to toggle through the other data. An optional smartphone app adds GPS tracking, without shortening the computer’s superb battery life.
NO GOOD
It’s pricey for what’s essentially a non-GPS computer without a heart-rate monitor (75$ extra). GPS aside, Topeak’s app offers little advantage over Strava other than cadence data. The wheel magnet can get dislodged on rough ground, and the mount is slightly flimsy.
Price 127$ (with cadence sensor)