I have a 72 Shovel in a rigid frame that I built back in the late 70s with a Harmon front end and I still ride it. I tried Girders, Springers and a few other front ends until I got the Harmon front end and it is still working like new. Best front end there is. Thinking about going with the new Harmon front end now. Made from a little thicker steel. Here is a couple of pictures of my Dog And Shovel.