An old design of bicycle chain that was commonly used in the early 20th century. Unlike modern chains, where every link has a tooth, skip tooth chains have a tooth on every other link.
A "skip tooth chain," also known as a "block chain," is an older design of bicycle chain that was commonly used in the early 20th century. Unlike modern chains, where every link has a tooth, skip tooth chains have a tooth on every other link. The larger teeth and wider spaces between them were thought to handle wear and dirt. Over time, the bicycle industry moved away from skip tooth chains to the more standardized and efficient design as used today.
