The maker of the bike-share software, PBSC Urban Solutions, Inc. in Montreal, didn't return a message seeking comment.

WSJ: Open to All, New York City Bike Share Copes With Glitches

The system selected for Citi Bike is a derivative of PBSC's groundbreaking Montreal bike-share model, known as Bixi.

WSJ: Open to All, New York City Bike Share Copes With Glitches

But the system was delayed by technical glitches in the payment kiosks supplied by Montreal-based PBSC Urban Solutions Inc.

WSJ: Bike Sharing Gets Into Gear

But after parting ways with the software company that developed the operating systems for successful programs like Boston and London, PBSC developed a new operating system before launching the New York, Chicago and Chattanooga, Tenn.

WSJ: Open to All, New York City Bike Share Copes With Glitches