did 30 miles or so. not sure because my bike computer wasn't working at all. i changed the batteries 2 weeks ago. and it's wireless so it isn't a broken cable. i always forget the sequence to "wake it up" but I seemed to have tried just about every possible button sequence today to no avail. oh well, that's a task for tomorrow. my cadence readings have not been working lately either, so it seems i'm in for a session with my bike tomorrow! and a good opp to clean it as well.