At various times on various models in different markets, Dahon has used Shimano Nexus, SRAM or Sturmey-Archer 3-spd IGHs.
You have to disconnect/reconnect the shift cable and reset/insure the cable position after some fashion on all three brands. If you can repair a flat, the cable thing is no big deal.
Originally Posted by
dorkypants
I don't know if it's still true, but old Sturmey-Archer 3 speed hubs had this interesting feature where just a little past middle gear there's a "neutral" setting where the hub and the cranks are not engaged to each other.
Uh, yeah, Sturmey started building some models of 3-spd hubs that didn't have a neutral between 2nd & 3rd gear in 1984, and hasn't built any with that quirk this millennium.