Oddly enough, I'm another Bike Friday gal. My best-fitting traditional bike was a cannondale 48cm with 650c wheels. As the components wore out, I was unable to replace them due to new technology components, and eventually donated the bike. It is a real shame 650 wheels are a rarity now. I too think 650cm should come with a less than 50cm bike. When I had my Bike Friday made, I used my cannondale dimensions. It is a PERFECT fitting bike and I absolutely love it! Maybe there is a BF retailer in the area? When I was researching Bike Friday's they had some kind of program where they could hook you up with someone local (I mean a regular person) to talk to and test ride their bike. I did that with some woman who was somewhat my size in the area before buying. Good luck!