I'll go days - if I'm lucky weeks - without driving a car. My daily transportation is a 2010 Dahon Jetstream folding bike. The folding is key, as most places I go a folding bike is allowed on trains while standard bikes are banned during peak hours.
This is my second e-bike build, though in full disclosure - my first build
is still far from complete.
Stock Dahon Jetstream, with
1) NuVinci N360 drive plus ATS Speed Drive - giving me a hell of a big gear range.
2) Decent carrying capacity - Topeak trunk bag, collapsable metal rack (fits a 12 pack of Harpoon IPA), and a mount in front that my back pack clips in to.
It's heavy with all the mods/crap, but I can still carry it up the two stories of stairs from the train platform to the street, which is something I cannot lose by going electric. That rules out a heavy rear hubby like the Cromotor.
My challenge will be to add electric assist without losing foldability. Stealth would be nice but I'll settle for "plausible deniability". What I mean is, the bike is already freakish looking, and lots of people ask me if it's electric already (the big batteries I have strapped to the bike for lights, plus the NuVinci, it does look electric). I'd like to be able to keep electric assist low key so train conductors don't boot my ass off the rails...EDITS
19 Sep 2012: Changed post name from "The MENSTRUAL Cycle: Belt enclosure coming together"
25 Oct 2012: Changed post title to "The MENSTRUAL Cycle: Now with video"
--- skipped a few name changes
23 Feb 2013: The F3: Using a NuVinci on the Dahon JetStream
02 Apr 2013: The F3: Chain tensioners...
11 May 2013: The F3: Sharing the e-bike grin!