[IZ] Presidio Bike, 10/9

Dist: 11.5 miles
Time: 0:52
Avg: 13.3 MPH

From the office, Embarcadero, Crissy Field, up through the Presidio, home along Clay St.

This is my first non-trivial ride in a couple of days, and the first one since I replaced the cassette and chain on my bike. It's getting dark early (sunset before 7pm) and my usual route along Crissy Field is unlit.