Chuan-Xin Mid-Drive Bottom Bracket Motor

[tkollen]

I recently came across this mid-drive motor from Chuan-Xin Technology Co. Taiwan. A 400W motor with reduction gears, all confined within a somewhat larger bottom bracket. From the pictures It appears that the motor shaft and reduction gears rotate around the crank shaft. Looks like the ideal electric bike solution to me, all the benefits of a mid-drive, clean design with no external gear reduction chains and sprockets.The only draw back is that a new bottom bracket has to be welded into place.

If anyone has any experience with this motor then I would like to hear about it?

 

[Miles]

Some info here: http://www.endless-sphere.com/forums/viewtopic.php?f=30&t=18255&p=265936