I have really enjoyed this topic in the last few years - so thank you all. I recently bought a poorly painted Dyno frame and maybe someone can help me identify it. Somewhere in the past the chain-guard tabs and the kickstand had been removed from the frame, but at $40 I went for it. Looks to me like a painted over Von Franco frame. It has the Dnyo D at the end of the top tube. But this is where my experience of this frame ID ends. I have not seen the D stamped on both sides of the rear dropouts before. And have not seen the way the seat stay is welded to the dropouts. Usually, the seat stay is welded to the front end of the dropout and not welded all along the top of the dropout. The chainstays are narrower close up to the bottom bracket. The other Dyno's I have go wide right after the where the stays are welded to the funnel-shaped part between the bottom bracket and the chainstay. I am thinking that this frame was originally for a 26-inch narrow tire and not the 24-inch fattie. Any thoughts? Does this coincide with the Von Franco frame? I also included a pic of the serial number - can anyone ID this frame? BTW: Some years back I created a Dyno website: www.DynoBicycles.info and took photos and info from all over the Internet as a resource for Dyno lovers. If you find a photo that is yours - you can help me to ID the bike and I will give you photo credit. Of course, if you want me to take your photo down, just let me know and I will do so at your request. And if anyone has a cache of Dyno photos to donate, I would appreciate that as well. Thanks so much!