Tofu- I'm a member of the Benicia Bike club and can tell you that we're a pretty darn friendly group! If you want to check us out- on Tuesdays we're at the downtown Starbucks around 11:00AM or so (we come down Franklin Canyon and then turn left and ride into town). On Sundays we'll usually get to Starbucks around 9:45 AM or so. Some people go back to Benicia via the Carquinez scenic route and others go on to do more mileage- Pig Farm, Bear Creek Rd, Reliez Valley Rd. etc.

I do know that the Diablo cyclists are a pretty fast bunch. We're a little more casual altho we have some strong, fast cyclists in our group.

Hope this helps. I trust you have checked out our website.