The Rossopuro things are all based around the old 2V motor hogged out to some stupid size and running water cooled heads. Lots of 'Claims' are made about power and torque but the only person I've ever spoken to who claimed to own one was a Finnish nutter a few years ago. When I asked him how the twin plate clutch handled the supposed 140hp and monstrous torque he got all defensive and told me I didn't know what I was talking about and was only jealous because I couldn't afford one. It would seem that Rossopuro only sell their shot to gullible wankers.
Pete