This is the
ride I did on Sunday, and I spent a lot of time in 1st gear. Could be I'm just a weak climber
EDIT: Motionbased isn't very good at rooting out obviously erroneous GPS data. There are some steep bits for sure, but not 31% climbs or 84% descents (that would be near free fall, no?)
I'm considering riding fully loaded over Mt Tam to get to Stinson Beach or Point Reyes national seashore. I really don't know if I could make it up those hills with full camping gear. On the other hand, I haven't tried either - maybe I should try overnighting in a B&B in Stinson Beach first, with a smaller load. If I can avoid increasing the weight, cost and complexity of adding a double crank that would only be a good thing.