Dai Wei and his co-founders grew Beijing-based ofo from a school-based startup to a bike-share behemoth in a matter of months, topped an all-out market-share battle fueled with almost $1 billion in venture capital, provided 2 billion bicycle rides, soaked up the majority of the bike manufacturing capacity in all of China, and then, in July of 2017, hit pause. The proximate reason for halting their purchase of new bicycles was a supply imbalance: ofo had many more bikes on their way than they did the smart-locks that allowed their customers to unlock them with their cell-phones. But the breather would also give ofo's leaders a chance to re-assess their plans for the rest of the year. For how long, to what end, and at what cost, to wage their market-share battle with main rival, Mobike? How aggressively to pursue their international expansion and what adjustments, if any, to make from their model in dozens of Chinese cities? And what to do about the concerns from government officials that ofo's dockless bikes and those of dozens of competitors were creating hazards on city streets? Wei and four schoolmates at Peking University had launched ofo on their campus with 1000 bikes in fall 2015. Since then, they had deployed 6.5 million. The question now was how many more?