Just a quick share: if you’re having trouble getting your heart rate monitor to sync (which I have for months), lick the crap out of the rubber sensors that touch your skin. It’ll connect instantly.
How did you get crap in your sensors in the first place?
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That was the first recommendation to fix the syncing problem.
a la dcrainmaker, I bought some cheap electrode/ultrasound gel on amazon. it’s like 5 bucks and will last you a long time. this also keeps my hrm from going crazy whenever it’s cold or descending on the bike