But I've owned a full power RGV and MC21 and the NSR has more mid range grunt (torque) and wider top end power band.
The RGV's your referring to are probably highly tuned race bikes, there is an RGV racing in Derby Phoenix Club in the UK which is producing well in excess of 70 BHP.
But I can't ever imagine Major Tom is going to get a road bike tuned to that level, be it NSR or RGV
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Rich
MC21 Track Bike / RS250 NF5 'Spencer', NX5 'Cadalora' & NXA 'Aoyama' / RS500 / Two Brothers Racing RC30