400ex frame problem

[400Riderex]

Did the 400ex use to have frame problems?weak points? i have a 99 which i race and thats the first year so i would like to know where to put gussests if nedded. does anyone know where the problems are in the frame??? i

thanx

http://ricoracing.netfirms.com/

go to the tips and tricks section to see where to gusset your frame..;)