Looking for a way to make what is called a blockhead - it is the thing that holds the front forks down in a bike rack once you remove the front wheel. I need to transport 2 bikes in the back of my truck periodically and a pair of retail blockheads cost about $50+. The bikes are not that nice but I still do not want to just lay them in the back and let them move around. I'd rather mount them in some kind of rack in the back of my truck. Also need to put some other stuff back there with them.