Originally Posted by Creative Engineering
Felt makes some nice bikes! I'm thinking the same thing! This will make an awesome motorbike! I've got to call thier engineering dept. and find out how the upper frame is made. Maybe they can make me one that is sealed so I can use it as a fuel tank!
Ridley Vintage Motorbikes : Vintage Motorized Bicycle Kits
Some of their pictures are photoshoped but they have sealed the upper frame. You might want to talk to them as well.