U want the latest , get the triple clamps of 97 - 04 clamps then get a set of showa forks of 15 -17 kx450 which slide straight in convert them to a spring set up , and while you at it get the front wheel as well then you have the 270mm rotor , added bonus gold valve it as well so you can put your personal valving in. there other models front ends that work to and be cheaper just remember to try to get the whole front end , if you use a older model put a oversize disc on it , on a 2000 kdx 200 i have i used a braking bracket of a kxf 14 model to suit a 270 mm rotor then got a custom made rotor made on a water jet cutter , with the right pads its 2 rungs up the ladder better,