um well i'de say i got this one covered.my 99 kdx200 has klx usd's .racetech gold valves/springs,along w r shock revalve,300 stock guts r as bad as the kdx if u don't fix that don't bother.it's super....not like havin kx forks but it's an upgrade imo having ridden stock forked kdx's.no rebound clicker but could send em out for that.i love it,handles sweet,predictable,not as flexy,less unsprung wt,less underhang,confidence inspiring !..best part is all the stuff swaps over.u can use the lower clamp from the 300 but get a better upper is my opinion.i have a scotts upper w damper/big pt bars....oh looks sweet too i got pics lol