Fairly reliable
I think mine is a CS100. I’ve had no problems with the HRM function specifically, but a couple of (admittedly very cold) days it has simply got bored while paused and declined to start recording again when I’ve restarted. Not a huge problem, just irritating.
By way of slight hijack – is it possible to mount the wheel sensor on the back wheel? My guess is not, but would be interested to know if anyone’s made it work before I gamble the time. Turbo trainer purposes obviously.
Word.
Jon