Originally Posted by karma

well im picking up the motor but im not using it to propel the bike im using it as a generater to charge the cells when i go on long rides and the bms cuts out leaving me to pedal. theres no law say it cant be used for that.

i did a few test and found a small 250 watt 24volt motor makes a great generater, ill rebuild the motor for 49volt. buy adding more copper to the winding. and its smaller than a popcan.
most of the setup can fit nicely behind the down tube of my shwinn izip where the old battery pack was.

and like thay say out of sight out of mind ill build a nice shroud around the gas motor and make a nice custom tank, not like the one it comes with