I have RSVs on my ZX and would have put some on the RR, they're $150 each. I can't stand the way the gaurds look so I would buy a stock end or replacement ones, but that's not worth $500. Usually the factory options are a pretty good deal, like the wheel options and the solo seat. Having the rearsets would have be a sweet deal, without them it's an over priced option IMO. I'll find out shortly, but I don't have a good feeling about it.I agree on the levers. I find the basic factory levers to be great. I normally replace the levers with each bike I own. Did it with the my ZX-10R and did it with a 848 I had owned. One thing to consider about the guard is that many report a dramatic decrease in handlebar vibrations. That may be a consideration. I have a set of R&G bar ends with sliders on my bike. They're heavy suckers but they don't totally eliminate the vibrations.