Three of the five companies that unloaded about 20,000 rental bikes in Dallas a year ago - ofo, Mobike (also from Beijing) and San Francisco-based Spin - have ridden off. "They were disingenuous and didn't want to work with the city to create a more bikeable city," he told Wilonsky. Dallas became the third major US city that ofo left in a month - there was Washington DC on July 23 and Chicago on July 9. The dockless bikes also are more susceptible to theft. Now it seems the companies are having to pedal off before the regulations catch up to them.