You can ride your bike along the Oklahoma River, and for only $6 ride the boat back to your starting point. The boats allow bikes on board. You can start at Meridian Landing ( SW 15th and Meridian ) or at the Boat District near Bricktown.
Adult beverages are even available if desired. For information and departure times, check: http://okrivercruises.com/
Sounds like it could be a fun adventure!