Tony from Ratco did a great job creating yet another TR4 factory spec frame. His website is https://www.sites.google.com/site/tonyratco/frames. He is located in NY state and produces one frame a month at his current output rate. My frame was made in June of 2016.
This TR4 frame is powder coated and foam filled. The foam serves two purposes; one it seals the inside of the frame so that water cannot get inside the frame cavity and sit there eventually causing rust. The second reason is minor vibration dampening/sound deadening.
I also got the front and rear shock tube conversion kits as well as front and rear sway bars for improved ride and control.
It's a beautiful frame and it will never look better!