So I figured that since this bike has been sold as the Wowow in Taiwan for a while, the motor should be fairly common. Does anyone know of a model number for the motor/transmission. I'd like to get a little more pull for going up the big hills around here, nothing crazy. Just wondering what's out there, you know? I mean, I guess swapping out the rear chain gear to one with less teeth would be one way to go, but you'd lose some top speed.
I'm also wondering if something like this would bolt up?
http://shop.pitsterpro.com/gpxmoto150xcrateengine.aspx 
Found on:
http://www.advrider.com/forums/showthread.php?p=10089357