Here are some pictures of my bike:
Version 1.0
This configuration with a 9 tooth motor gear and a 90 tooth crank gear along with a 24 tooth chainring resulted in a top speed of ~24 mph in top gear. However whenever you wanted to pedal it was rather retarded with only the 24 tooth front chainring.... I also didn't like my motor mount so I revised...
Version 1.1
This bike has a lashout gearhead, 4.7-1 ratio then goes from a 17 tooth motor gear to a 90 tooth chainring resulting in a cadence of about 112.
This version has a chain tensioner and a little different motor mount utilizing the water bottle holder bolts. This has a 26, 39 and 52 tooth chainring on the crank. This results in a range of speeds from 9mph to 30.6 (theoretically) more realistically a top speed of ~25mph without wind.
I have been riding this version to work for about 10 days (only 6 workdays) and haven't riden every day but I have riden ~155 miles in the last 10 days. I average anywhere from 20mph to ~24 mph depending on wind, and with a tailwind today I averaged ~26 on the way there and about 19 with the headwind in the afternoon (a vicious headwind)
Anyway Heres what I built..
The only problem I am having is that the internal 24v controller on the kolmorgen motor seems to overheat after about 8 miles at 23-25mph... it overheats at ~185 degrees f on the controller side of the motor. Then it takes a couple minutes to cool back down and turn back on. I ride about 8.5 miles each way to work everyday so some days I have to pedal other days I make it just fine.
I am really wanting to get an external crystalyte controller for at least 48 volts and run this thing at a higher voltage with an external controller. I think it will really come to life with that!
~Sean
http://www.flickr.com/photos/7205482@N03/sets/72157600395113016/