Backbone has been aligned and tacked in place. I made the backbone 600mm long because based on a mates Harley Davidson that has fatbob style gas tank the smaller 3.5 gallon tanks are approximately 500mm in overall length so the extra 100mm will hopefully allow the forks not to hit the tank when i’m turning the sheel from lock to lock. I don’t need a large storage gas tank because i will be having a 2nd gas tank mounted elsewhere later on.