Well half inch or less isnt a bend its a tweek. what id do personaly take the front wheel off. Place a scree driver shaft in the drop outs and pull on the side thats tweaked back. What will happen is one fork will move back alittle and the other foward a little. This will effectivel split the diffrences. Your steering will likly be noticably effected. You will get quicker response so youll want to take it around the block nice and slow a couple times to get use to it. Safty wise it should be fine. Nw any more than a half inch and id never mess with it not on a street bike. Old bmex heh ive fixxed forks with huge bends in the forks and crashed them off of jumps with no isues. Corse your talking tubes for the forks the size of a cannondales bottom tube hehe.