Bicycle Museum of America
Finally riding a big boys bike
Good morning/afternoon/evening!
A patron brought in an interesting machine to the museum this morning. It seems to be an early 20th century bicycle, but it appears to have double chainrings. While I know that the derailleur was invented in the early 20th century, it wasn't widespread until much later.
Has anyone ever encountered something like this before? What was the purpose of the second chainring? Would it have required manually changing gears?
A patron brought in an interesting machine to the museum this morning. It seems to be an early 20th century bicycle, but it appears to have double chainrings. While I know that the derailleur was invented in the early 20th century, it wasn't widespread until much later.
Has anyone ever encountered something like this before? What was the purpose of the second chainring? Would it have required manually changing gears?