Originally Posted by
Kapusta
I am not sure of the actual numbers, but consider that in much of the world, bicycles are used for urban transportation, and IGH is the standard for that.
All of the bike share bikes I am familiar with are IGH. That's a lot of bikes. Also, look at the bikes people are riding around in cycling-heavy areas like Amsterdam and Copenhagen. Good luck finding an RD, and I do not think they are all SS.
Aren't the largest share of bikes, by far, located in Asia? How common are IGH bikes there?
Also, just for clarification, I think that 4x number would have to be confined to adult bikes. Single speed kid bikes are a dime a dozen.