Hey everyone.. if ypu have any questions on the stock boss stabars and bushings those were my babies and i still have all the design info, bushing rates etc. Same w s550 and gt350 and beyond.. hit me up!
From what i remember the R has less bar rate in the rear. Same in front
Both gt350 and the R have exact same 65 durometer rubber front bush bonded to bar w metal internal rate plates and a shaped bottom sled plate base.
Crap.. i might be wrong it could be the slippy bush in front.. ill dig it up.
Newest design already testing is over 1.5 lbs lighter, softer rubber, yet higher rates! U will like it.
Dont forget two different folks tuned those..350 VS R. Different philosophy. One liked huge bars one liked smaller.