Originally Posted by
bikebikebike
There is a S-A 122mm 8 speed,
http://www.sturmey-archer.com/files/...0S80%20(W).pdf
which would do this proud. 16 spoke hubs would require creative spoking of 32 hole rims. and 1gear is the 1:1 giving need for BIG front chainwheel
3spd hubs are pretty limiting on 16"rims
As stated in the above post, there's no issues with the hub being used on a Dahon Curve, and it's been done before,...and quite successfully. There's a thread dedicated to it if I'm not mistaken.
And the hub is 120mm old, NOT 122 old. Read the specs you've shared in the pdf. I believe you were looking at the hub with the 132mm old.