Did the conversion on my touring bike this weekend. Went with a Bionx conversion kit. The bike rides like a dream. It's pedal assist. It still made me work... but man, we were cookin'!!! There was an earlier thread about taking a pull from an e-bike... you're welcome to hop on back. The pedal assist cuts out at 20 mph... I'm sure there are commuters that ride that speed. However, 20 mph uphill may be a different story. It's not going to be a problem for the bionx.

I'll still be riding my carbon fiber bike as a commuter on nice dry days. It's still a riot to ride. I'm set. Spring... bring it on!!!