Dont laugh, but I made a skidplate for my girlfriends xr200 out of some sheet aluminum (from a street sign) and sme pvc mounting brackets from the local hardware store. It may sound cheesy, but it serves the same purpose as an aftermarket skidplate and cost me less than $5. I have heard from some sources that you shouldnt run skidplates on xrs due to the decreased airflow to the engine. I havent experienced any problems with overheating on the little xr, and we tend to ride fairly slow. My main concern was protecting the cases from rocks, etc. as we ride trais exclusively on the xr. This serves that purpose.