I think its awesome man. That golden motors kit really shines.
The only thing is the twist grip id mod on this bike.
You know what happened to my rear motor when my twist grip came off? The Wheel got stuck at full throttle. I had to put it back on and hold it in place to get it home. One of the small plastic tabs broke and it wouldnt stay on safely at all.
This IMHO is one of the mods that goes down on my list as crucial for safety reasons. I got the mod somewhere from these forums.
Cut the end off your twist grip and replace the end with a (excuse the expression) tight butt with low friction washers in between the butt and whats left of the twist grip.
This is the broken twist grip still working and I can lift the entire bike 15kg sla's and all with this twist grip and it wont I mean "wont" come off.
You probably wont have the same problems as me with weight however in case you bump it on the a pole you might get yourself into hot water....
This mod also almost if not takes away the need for brake switches as when you go to grab the brake you release the throttle naturally.
Also I read you can cut and leave 3/4 of an inch left of the throttle but don't quote me on that one. I did mine for comfort and left some grip contour on the twist side. If you want it to look pro buy another left grip and cut the end off it at the right length to retain the GM look.
The low friction washers IMO are important as the twist can get a lil sticky.
Its best to do it before they break as it is a better job...
Very nice mongoose BTW.