Please arrive at least fifteen minutes before class. Bring regular athletic shoes (or SPDs), water bottle, sweat towel (or two!), and thumb drive. Sign up here: http://www.17thstreetathleticclub.com/
From Marissa "You can use the wahoo app, the vismoX app or being a flash drive. Supposedly strava app works too but I haven't got it to work for me yet. Or just take a picture of the data and manually input."
Also check out other Workshops in San Francisco