Hi Ruben, we are located in Jefferson, Wisconsin which is half way between Madison and Milwaukee. Both the R50 and N7 have all forward bars in them. The ones on the N7 are new, and like new on the R50. They both have new accelerator rolls. The N7 has the new style P3 cage sweep, has a double set of discharge paddles, and a new concave. The R50 also has the heavy duty straw chute update. I forgot to mention that the R50 has the heavy duty S-36 final drives. Thats all I can remember off the top of my head, they would know more than I do. If you want more info you can call 1-920-674-4279, or fax 1-920-674-6279, or e-mail @ lschuld@hotmail.com, I think above adress is wrong, ask for lloyd(R50) or Brian(N7).