I just sold my crappy Korean Lespo and upgraded to a Dahon Speed P8 for 760,000.00 Korean Won. I paid a little much but, it is the '09 model. I wanted the Jetstream but it was way out of my price range. Anyway, here's the question... Can I take this Speed P8 and upgrade it with Dahon Kinetix Pro wheels and put a new double sproket crank on to make it a 16 speed? I like it how it is but i need more top speed. I have to keep up with friends on road bikes, I usually ride around 21-22 KPH but these guys run off and leave me everyday. I figure if I can shed a few pounds off the bike and add a few gears to increase the efficiency maybe I could keep up. Any suggestions? Comments? Pointers? I'm still really new and I will appreciate ANY help. Thank you!