Yes, the red one is Bike Friday and has 1 and 1/4 (?) ID... Or anyhow some weird measurement. Also you need to split the handlebars in half to use it. The RANS has 1 and 1/8 steering ID and 25.6 handlebars.
It attaches to a quill stem adaptor with a seatpost clamp.
But going back to my...