Looks like Madison is getting a bike sharing program. Trek is teaming up with a couple partners to offer a program using the B Cycle that’s been used in Denver, Chicago and Hawaii. They plan a May start time with 35 bike stations and 350 cycles. Trek has guaranteed to sponsor it to the tune of $1M to make it work. 
Back when I lived in Madison in the ’80s there was an urban myth about another time when they started a bike sharing program with yellow bikes that the punks proceeded to throw in the lakes. Maybe the punks will be better behaved this time.
