Edit - in March 2015 the Multistar battery upgrade has increased the battery from 1.4 to 2 Kilowatt Hours! Details on page 33-35.

Above is a July 2012 photo (just after we got it running, but before the commuter trunk rack was installed). This commuting machine continues to evolve, but we're getting ahead of ourselves. A few posts down this page I've edited in a more nearly current list of components in the current version of the project.
Now back to the Beginning, or how it all started:
December 25, 2011
Happy Holidays, All.
Let's assume for a moment that Christmas 2011 has been good to me and I'm going to get to build a Greyborg Warp with a Cromotor.
http://www.greyb.org/greyborg-warp.html
There are many choices to make along this road. Let's visit them and see what folks have to say about these choices. I've read most of what I can find about the 'Borg, but there are many things I have not found on these topics.
Some of my Use Cases:
a) commuting, hilly 13 miles each way, up to 15% gradient, 1200 feet rise one way, 600 feet the other.
b) camping, various terrain from streets to dirt roads and the occasional trail in the desert or Sierra, etc mountains.
I would prefer to keep this a bicycle and avoid having it be too much a motorcycle, insofar as practical. Somewhere between Bicycle and MoPed, perhaps.
Some Choices to make (there will be more later, I'll pick a few to start):
1) motor - Cromotor, other hubmotor, or RC?
2) forks - The GreyB.org 'dual disc' offering, or other?
3) crankset - Schlumpf or ?? what gearing??
4) rims and tires - bicycle, moped, or light motorcycle?
Comments, anyone?
Thanks in advance,
Other Greyborg builds and useful links
http://www.endless-sphere.com/forums/vi ... hp?t=25973 RC drive
http://www.carolinarovers.info/index.ph ... Itemid=150 DIY Rivnut Tool
http://www.competitivecyclist.com/revie ... n_779.html stainless chain
http://www.icetoolz.com/icetoolz/news.php?id=9 bike tools
http://www.endless-sphere.com/forums/vi ... =2&t=31518 current based throttle via CA
http://www.endless-sphere.com/forums/vi ... =2&t=55211 Cromotor Data
My Other Threads of Interest
http://www.endless-sphere.com/forums/vi ... =3&t=28112 Ebike Electronics System Planning
http://www.endless-sphere.com/forums/vi ... =3&t=21390 My Commuter Mountain Ebike, an REI Novara/9C
http://www.endless-sphere.com/forums/vi ... =3&t=35954 My Long Distance Comfort Recumbent, a BikeE/BMC
http://www.endless-sphere.com/forums/vi ... =3&t=27751 Son's Puegot Mountain Bike/9C Commuter