Originally Posted by
gattm99
That looks good, now 36v 15Ah or 48v 12.5
My guess is to ride with me around 16-18 mph she'll need the motor to produce around 100 watts and 250-300 on hills.
Well, 48v is 30% more powerful, 30% heavier, 30% more expensive. Your choice.
The BBS02 can run either 36 or 48v (or 52).
If she is keeping up with you (non assisted) any mid drive motor at 36v should do the job.
If you don't mind the price/weight, get 48v (its going to be stronger than any normal rider).
If you want more encouragement to add your own pedal power 36v (or lower current), will encourage that. ;-)