That’s the one that lasted longest with me, I got it in 2006 and it was still working when I moved here in 2012 and I think I got a few more years out of it). I thought it was prone to spikes on each ride but on hindsight it probably wasn’t and was consistent with my subsequent maxes on other straps adding on 1bpm per year. My TickR never lasted long at all and Wahoo replaced it during that time. When they had to again, I gave up and bought a H10
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