I am in the process of swapping the original forks for some up-rated forks and head set from a wr450. I am trying to locate some bearings to fit the wr steering spindle and the original head stock. Does anyone know the outside diametre of the upper and lower head stock bearings on the xt660r. Or does anyone know the internal diametre of both the upper and lower bearings. I am to lazy to strip down and measure then re build to strip again later when i have sourced all the parts i need. Alternativly could anyone tell me the original bearing No.s and make so i can cross reference and find a match. Thanks Ian