Light weight crank drive

[shemozzle999]

New to market?

light, 180W Patented Middle Motor,View bike middle motor, Product Details from Suzhou Xiongfeng Motor Co., Ltd. on Alibaba.com

I can just imagine one of these fitted onto my Brompton

 

[Deleted member 4366]

I think that you'd have to drill out your bottom bracket a bit: It's 4" in diameter!

The new GNG one would make it go a bit better.
Endless-sphere.com • View topic - GNG Drive Gen2

 

[flecc]

That 180 watt unit looks too small for this type to be of much help in practice. The BikeTec Flyer F shown below has more like the size of unit for this type to be adequate:

 

[NRG]

Now that is stylish.