Ive had RXV550 since 2009, which I bought new as my DS bike. Its a beast and I love this thing, but I would not recommend this bike to anyone as the only bike in the garage. Buy it only if you have skills, patience and money to fix and service it.
RXV/SXV V2 engine has been designed originally for Supermoto - Racing purpose only. So it will require maintenance little more than usual dirtbike and some services are a lot of work(for valve check you have to disassemble the whole engine). You can pretty much find all of the problem areas from AF forum.
The bike has a lot of potential powerwise. Good set of cams, exhaust and mapping will get you close 80rwhp, with some headwork it will be even more. There are some SXV bikes out there pushing over 90hp from rear wheel. For 120kg, that is insane!
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