I Finally took the time do post my Electro Ciao here (converted Vespa Ciao)
This has been my primary transport for the last 2.5Years, clocking over 8000Km so far.
This has been a constant evolution of better parts, better cooling etc...
Motor: C6374-200kv (the old blue one)
Controller: Hobbyking SS Series 90-100A ESC (Which is a lie... it actually pulls 125A..)
Battery: Headway 16AH cells arranged in 8S2P for 25V 32AH, Range 30KM+ (Longest travel so far just over 31KM)
Drivetrain is stock, had an axle made for the motor that starts at 10mm as the motor is and goes out in 12mm and then into the stock clutch that the Vespa Ciao uses.
As you can see i chose to use a 25Pin (Printer/LTP connector) to make the power connection from battery to controller/motor, now this might seem totally insane but has been working for almost 2 years now, it does not get hot or anything even thou it pulls 125A Peak and 30'ish A on average, it is "split" in 2, 12Pins for + and 12Pins for -.
As you can see on the battery case there is a 19Pin socket also, this is for charging, i connect it to my iCharger 208B where it has all the balance pins and power plugs, it has no problem with handling the 13A the charger puts out, and from "empty" it takes 2.5Hours to charge, but for most runs i make it only takes 25-45minuts to charge
Oh and Top speed is 30'ish Km/h, Danish law on mopeds says speed SHALL be 30Km/t and "bigger" class of 45Km/t.
But it makes up for the low speed by accelerating HARD
And a note on cooling, top tip: sand down face of motor to clear paint and expose clear aluminium, use thermal paste between face of motor and aluminium plate, as you can see i have 2 plates, this is not needed, since i got the last cooling done i will do fine with the 1x 6mm plate, the 2x fans helps on cooling but after i got the motor face sanded down they are almost not needed anymore, but less temperature equals more power and efficiency, on those cold nights you can defiantly feel a power boost because of cooler motor, i will get some pictures of the other motor i have when it is sanded down to show what i mean.
EDIT: Sorry for the many changes, just trying to make it look neat.