Hi CK and TS,
I have all day Tuesday 19th (week after next) set aside for retro-riding and socialising - although I'm staying near Union Square in SF, I have a hire car and hope to be able to get to the Fairfax area by mid-morning to meet up with any and everyone that can come out during the day or meet after work for a beer!
Tuesday is the 18th, not the 19th.
Get your beer in Fairfax at the Iron Spring Brewery. A wide selection of local ale and beer. I think they still sell Repack Ale.
Check out The Scoop for handmade ice cream in cones they make in front of you.
I rode through Fairfax this morning, and the overwhelming majority of people I saw on the streets were wearing bike jerseys. That doesn't include those riding bikes but more casually dressed.
Fairfax is the bike capital of the West Coast, and on the weekend you can usually see a dozen riders from any point in the downtown area at any time of day. Mountain bikers come there to start their rides from the parking lot next to the coffee kiosk, and it is a convenient distance from San Francisco for a turn around on a road ride.
My book, Fat Tire Flyer: Repack and the Birth of Mountain Biking
is at your bookseller and on Amazon