The gearing on Fridays is different to accommodate the wheel size, so I don't think that the drivetrain from your old bike will work. I'm not sure about this, but if you call them, they will tell you all you need to know.

I had them build it for me based on the measurements of my Luna. They were great to work with--very patient as I kept changing my mind about things. In the winter they build faster since there are fewer orders. I got mine in about 4 weeks, but usually it's longer than that by a few weeks.

While it was alot of money to spend, I'm grateful that I could swing it. I could not have taken my Luna to France with me, and that was a very important trip for me to take with a bike (my first long bike trip was through France when I was 15, and my ex-husband is French and so it was important for me to go there on my own terms to deal with all that baggage, yaddayaddayadda).

I've also brought my Bike Friday with me in my little car on other bike trips and even on work trips when I was able to squeeze in a bike ride here and there while out of town.