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14 miles in the off/on drizzle, quite humid. Good ride, the new helmet fits and feels great.
I use Fitbit for calories, it uses heart rate and weight to do the calculation. I think it measures heart rate just fine, and I keep my weight updated in the profile as I have been on a slight downward glide path. I don’t know which formula fitbit uses to calculate calories, to me the data it gives is directional and I wouldn’t use it to budget calories or plan menus.
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