I keep reading that the RMZ250 needs heavier springs in just about every mag. I may be buying an 08 within the next couple of days. I contacted my local suspension tech and he said by the Race tech site they recommend ligter springs!? Does anyone have experience on Race tech? My friend used them for his sport bike and felt that the springs he ordered to the stock specks felt harder (but was very happy with the results)-could this be the reason they recommend a lighter spring? I weight 170 so I know the stock springs won't cut it if they say they bottom easily for a 150 pound rider. Any help would be appreciated. I am a fast Vet (ride Vet Expt) if this helps.