normal wear parts, hmm? tbh i cant really think of any on the rush that wear out quick enough to be 'normal wear'. i spose if you want to buy new parts id suggest buy thing that break the quickest, such as shock towers made of aluminium, get the metal disk hub, a new slipper clutch pad (those seem to go fairly quickly), new set of tyres if youve go enough cash, alu or spare plastic wheel hexes cos ive noticed they strip easily, racing fuel tank as the stock one supposedly leaks, titanium or spare stock turnbuckles as the stocks bend easily, a failsafe to help prevent you having a runaway crash in the first place, spare spur gear, and spare clutch bell. not ALL of these are neccessary, but if you are planning on geting new parts, take these into consideration