You can even set a ride timer to help track your Citi Bike rental and prevent late fees. -------------------------- NYC Bikes is not affiliated with, or endorsed by Citi, Citibank, Citigroup or NYC Bike Share, LLC. Citi® and Citi Bike℠ are registered service marks of Citigroup, Inc. All rights are reserved by the respective owners. Continued use of GPS running in the background can dramatically decrease battery life.