closest I've come recently was 30 miles on my '72 Super Course (68 total) and 40 miles on my '89 Miyata 1000 (61 total).
I had a dream Saturday night that I got my Durkopp going and was on a long tour with it...if that becomes a reality I'd only need to do 40 miles to be at the C&V century mark.
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--Don't Panic.