260LQ Wiseco Piston Kit # 701M06800 : 3 ounces lighter than stock: faster rev. 250LQ Wiseco Piston Kit # 701M06750 Wiseco Wrist Pin Bearing # B1003A Wiseco Top End Gasket Set # W5566 Boysen Reed # 670 Moto Tassinari V-Force 3 # V306A-M :I use the V-Force 2 (same as KTM 250 93-97) Paoli Blue Steel 46mm : Same as 2000 Honda XR650R Flanders Part number 401-90155 Fork Seal Size: 46x58x10.5/11mm Rear Brake Rotor Shark fin: Deval for 99 KTM: Needs minor filing along top to clear swingarm. Rear sprockets same as RM 250 Chain Guide shell: The stock is flimsy caused me to not finish race: Carbon Fiber Shell YZ250 Paoli Fork bushings, Get Bushing kit for CR500 Rear Brake Rotor is an ATK specific part. I suggest ordering one as a spare. ATK hasn't produced a new bike in a year or more. Front Rotor is the same as a 270mm KTM if I remember right. The shifter on the LQ's was custom made for ATK, theres no direct replacement. If you can find the one with the Grey rubber tip buy it. The black rubber tipped ones was CHEAP and easily destroyed. The factory has some white plastic in stock, or did have, for the KTM styled side panels, I know where to get the KTM style number panels and rear fender in black.