I own a 1988 nx 250. It´s a nice reliable bike, hard as hell to find anything other than stock for this bike. I would like to raise the suspension a few inches but, have been told I can´t because of some weird rear suspension set-up. I would also like to find other tires. Duro makes an alternate rear tire, but no front to match it. I did get a little more power out of the bike by changing sprockets. Top speed stayed the same, just higher rpm´s. If you have any info on raising the suspension e-mail me! John