They are bicycle-sharing programs in the simplest form: No credit cards required. No identification needed. No locks, even.
The Minnesota cities of Willmar and Austin are declaring success as they wrap up new, on-your-honor programs designed to get more citizens out riding bikes.
In Austin, program leaders last spring unveiled 30 donated bikes that volunteers had refurbished and repainted bright red. They set them out at six new bright red bike racks with instructions to "Ride. Respect. Return."
Steve Kime, who heads Austin's Red Bike Program committee, said he often saw bikes in use throughout the summer. Program leaders also got some calls when the red racks were left empty.
"The demand exceeded the supply, and that's not a bad thing," Kime said. "We hope to just grow the program and continue."
In Willmar, the Yellow Bike sharing program — in its second year — expanded to put about 80 bikes in circulation at one point over the summer. Far more than the 50 used in 2015.
"I think they got used quite a bit," said Ryan Harper, adult recreation and facilities coordinator at Willmar Community Education and Recreation.
Some businesses bought bike racks to set up nearby for their workers, he said, and saw those racks empty out. "We would get calls from businesses asking to get some bikes back," Harper said.