Originally Posted by darryl gesner
Should have gotten the Husky version (580) which has a padded waist belt and chest strap....distributes the weight nicesly. The Husky harness may fit your machine...not sure if the frame is different though.
Redmax and Husqvarna are now the same company I believe. Machines look very much the same but I'm not seeing the waist belt on the 580, at least on their website. Looks like they are making the 580 the same as the RM 8500 now. I could check replacement parts I suppose. How old is yours?