I think the main word there was "realistic" Dave. If he wanted it to be really light he could cut off the front head stock and wheelie it everywhere, Im sure he doesnt.

I think as standard the NSR is pretty good weight wise, get some race pipes as the OE ones as dave says weigh a ton. If you get a single seat unit ditch the pillion footrest and youve saved yourself quite a few pounds wthout spending too much or hacking things off.
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If I have to take the carbs off once more...