I managed 47 miles in extremely humid and very hot conditions. I did something a little strange at the halfway point - donated red blood cells. The Blood Mobile happened to be at the place where I rehydrate, and they asked me if I wanted to donate blood. I said I couldn't as I had almost 25 miles to peddle back. No problem, they said - we'll just take your RBCs and put back the plasma! That's what they did.....and I felt pretty good on the return (weather excepted).
I topped 1,000 miles in August - don't ask me how. Between the hills in VA and the unbearable heat in FL - out early and riding almost every day.
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Ride hard and ride on......