i would recommend you go see or talk to David Lam. he is the most knowledgeable person regarding folding bikes and fit in new york city. call him and see if he can help you. at very least, he will be able to point you in the right direction. although, dont be too surprised if you have the urge to trade in the tern for a bike friday..
http://www.bfold.com/
https://plus.google.com/108183351053...79/about?hl=en