Since this thread won't die, a couple of nonsnarky comments.
Our generation is getting pitifully out of shape in a big hurry. Anyone who gets on a bike and spins around the block is becoming elite. If it takes continuous biometric monitoring to motivate folks, so be it. Whatever people enjoy is fine with me, as long as it don't scare the horses.
I must admit, I'd be more willing to drop $600 on a new Garmin, which I don't really need, than on a new wheel set, which I don't really need either but would help my performance a bit.
There is an allure to gizmos.
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Momento mori, amor fati.