This would be great for a front wheel backup

[ollicat]

http://dsc.discovery.com/news/2009/02/18/green-wheel-bike.html

 

[bluegoatwoods]

It's a very nice looking hub set-up.

I'm dubious of their claim, though, that integrated batteries can be really up to the task.

But maybe it's the breakthrough we've been waiting for.