OKLAHOMA CITY - People in downtown Oklahoma City and Bricktown may soon see more visitors getting around on two wheels.

Oklahoma City launched "Spokies" on Friday. It's a bicycle share program that allows people to grab a bike and explore the area.

The city says "Spokies" is an affordable and environmentally-friendly way to travel. There are six solar-powered, self-serve kiosks in the downtown area. Riders can simply swipe their credit cards and take off.

The first 30 minutes are free. Each additional hour is $2, and the maximum charge per day is $75. Bike riders can buy a membership for $5 per day, $20 per month, or $75 per year.

The kiosks only accept credit cards; no cash or debit cards. If the bike is not returned within 48 hours, credit cards will automatically be charged $500.