In the context of the safety bicycle, what new constraints did the chain drive need to satisfy compared to industrial chains?
Answer
It needed to be lightweight, strong enough for rider power bursts, and operate cleanly.
The bicycle application required a balance: the chain had to be light enough not to hinder the rider but strong enough to handle sudden power inputs over thousands of rotations, while also operating quietly and cleanly.

Related Questions
Why is tracing the invention of the chain drive historically difficult?What contribution is Leonardo da Vinci credited with regarding the chain drive?What critical mechanical concept needed to be understood for sustained mechanical work using chains?What primary function spurred the development of practical industrial chain drives?What was the main technical goal achieved by industrial chain development that belts could not guarantee?What historical figures are credited with advancements in early industrial chain manufacturing?What design feature characterized early high-wheel bicycles that made a chain drive impractical for them?The advent of which bicycle design necessitated the development of an efficient chain drive system?What critical refinement did Hans Renold introduce to perfect the roller chain for cycling?In the context of the safety bicycle, what new constraints did the chain drive need to satisfy compared to industrial chains?What is the primary focus of innovation for modern roller chains, building upon late 19th-century designs?