"I love what I do, but it's time for Chuck to take the reigns and I'm really excited about turning things over to him," Chambers told CNBC on Tuesday.
Chambers said while his own strengths are "vision and strategy, [Robbins] can and will move the company faster."
"He'll make it more seamless across many of our operations and he'll take us to faster growth than I would have done," Chambers said. "I think the company is in great hands."
Chambers will serve as executive chairman and help Robbins with "key government relations, digitizing cities, and countries, key strategic partners, etc.," he said.