Electric Giant Trance 4 3600W 43.7mph

If that gets you 44mph, how fast would 106-116V 40Ah, 14,400W get you? LOL

I suppose you know what this means correct?
'8 x Turnigy 5s 20c 5000mah @ 74v-83v 10AH'.

Pretty good stats with the 20C multiplier rating for a 10AH battery with a 50 Amp rating.

The rub is it's a single speed hub motor.
You could put half that power to the bikes original geared back wheel via a center mount motor to take advantage of gearing but impressive none less, well done though I would really like to see how and where you put that battery ;-}