Thanks, more and better videos are to follow shortly.
You are correct, that pack is NOT the 15S2P!
That's my old 12S2P 8ah. It was very small, I fit fitted 6S2P in 2 zippy boxes and then duct taped them together. They delivered their quoted capacity but sagged like a fat lady.
This is the current incarnation of the bike running 15S2P turnigys in a stainless steel box I made up. I've also added BMX style handlebars for more comfortable riding. The controller is on the handlebars, which makes the wiring for the front hub and wattsup meter easy.
I haven't gotten around to making up mounts for it, largely because it'll go on another bike soon so it's currently ghetto tied onto this bike with an inner tube. It holds it firm though, even when taking a beating over rough stuff like this
While I'm posting pictures
This is my new bike I'll use on a daily basis for riding to work.
I'll be running a magic pie high speed motor and probably a 12S2P turnigy pack.
I was going to use my current 15S2P but I'm not sure if I can fit it there and clear the front deraileur.
The packs just fit themselves but by the time I put them in a box they are a tad too big. I might be able to rework the box and have the wiring leaving the top of the box instead of the end thus recouping an inch which might just make it fit.
Other works in progress (hopefully over the xmas holidays) are a custom cruiser (frame build by aussie jester)
This is a photoshop of how I'm planning it to turn out
Not sure what motor I'll use yet, I was thinking magic pie too but I might go with something beefier that I can up the current on.
I'd like it to be able to get up to around 60-70km/hr so I'm thinking maybe 18S2P lipo with a controller around 50a.
Batteries will go in the tank section with room for the controller and more batteries if needs be behind the seat post.
I think you said you were getting those sort of speeds from your 9C and modded infineon controller on 15S so with the extra few volts on board I should be able to do it.