wb wrote: 'dragged out of the shed a couple of days before a track day and hurredly lashed together with whatever old crap lay around'.

I know....I was there helping with the lashing myself. Maybe that was part of the problem


Anyway Vin, t's an MC21SP chassis with a 350YPVS engine installed. Some previous progress reports can be found here;
http://www.nsr250.net/forums/viewtopic.php?t=4295&highlight=

http://www.nsr250.net/forums/viewtopic.php?t=4705&highlight=


I agree Dave, the forks probably would benefit from being reworked to suit the weight, but I can't justify spending the money for luxuries like that, when some preload spacers and thicker oil would do the job...anyway it handles nicley as it is, so I'll probably not touch it. As for power, here's a very rough comparison between Stephen's F3 (in an earlier guise), his 300, and the 350 in yellow. (sorry for nicking your graphs Steve)