Ah, so it's not a stock seatpost then. Just a little advice...I don't recommend using a Dahon seatpost. I don't know if your bike came with a warning letter like mine did about using non-standard seat posts, but doing so could cause problems with the seat tube later on down the road. The Swift's stock seat post is designed specifically to fit the Swift seat tube. If you need a longer seat post, you should let Xootr's customer service know and maybe they can ship you a longer one.

Anyway, really nice setup you have there.