anyone have any idea where i can get an 8 speed rear hub to fit on a dahon curve d3 ? i know that the curve has 113mm rear spacing and almost all the hubs available are 130-135mm or longer. i plan on changing the 3 speed IGH into an 8 speed gears. what did they use on the curve SL (8 speed gear) ? and also for the front hub. i plan on building a new 36H wheel, too.