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I bike in SF all the time, I rarely need to go up any of those hills.
by bluejekyll 10y ago
I bike in SF all the time, I rarely need to go up any of those hills.
- jacquesm 10y agoContour line cycling, that's an interesting idea! https://en.wikipedia.org/wiki/Contour_line https://en.wikipedia.org/wiki/Contour_line