I am 6'1" 320 pounds and am getting a wr450 in november or december and am getting my suspension re done by a company called indepent suspension and set for 320 pounds for $1000.00 I am getting it set to do a lot of Desert racing and some mx and fmx. Is this a good deal? and anyone know any aftermarket parts for bikes cause i have been racing quads and i dont know anything about modding bikes? I am switching to bikes just cause quads are too much work, I have a modded 400ex i am keeping that for the winter but i like bikes more. I just need to know what parts seem to work the best, what ever puts out the horses. my first mod after my suspesion is gonna be a pipe and jet kit with filter. jjust dont know what pipe to get fmf or yoshimura or big gun or someone else? and what other engine mods should i get?? and just out of curiousity what is teh top speed or the wr450? i am sure is has more than enough torque.