HI I newly bought a dahon speed 8, and I want to go to some where suitable for a folding bike, I live in San Jose ,thx
I did a quick search of "san jose bike routes" and found plenty of resources. Here's a good one to get you started - http://www.vta.org/schedules/gmaps/index.html. Folding bikes are also great for multi-modal trips, and bikes are welcome on the San Jose light rail, on CalTrain, and folding bikes are okay on BART.
I've been lurking here for a while. Two weeks ago I bought a Giant Halfway off Craigslist with the intent of getting back into shape by having my bike with me wherever I go. I rode part of the Coyote Creek bike trail, starting near Blossom Hill Road down towards Morgan Hill. Total mileage was about 12 miles. The bike and the ride were great. Downtown there's a trail from downtown to Alviso that looks like fun. If you're in good shape, there are any number of fun hills to ride... the Almaden Cycle Touring Club has quite a few club rides if you're in to that sort of thing.