...ditto what SoCalRob and the others said...yeah, it' spendy but... I almost gave up on buying an R12GS because every one I test rode felt twitchy, especially at freeway speeds and in side winds. But then again I came from an R11S. Still, when the HyperPro was announced I here at a discount I got one. Now my GS handles much calmer. I felt what I got in the shrinkwrap was a bit lacking for the amount I paid, but I'm glad I have it. Having never had a bike with a damper outside of a '77RS, I never knew their worth. Now I can't ride a dirtbike without one. IMO it's not an offroad unit, I doubt it would hold up long, but for the 95% street I use the GS for it's gall durn great.