after a very rocky ride at Traxx MX track (in the woods) I wasted my gradon proline swingarm skidplate (cracked). I just put on a new PRM skid and it appears much beefier. Hope this info is helpful to all you rock riders.

99 400ex, big gun exhaust, wiseco 10/1 piston,webcam,162 mainjet,mod airbox lid,works front steelers on the way

 

prm skidplates are well worth the money.The swingarm skids are the beefyest ive evr seen.

 

A group of us just drove down to Traxx from Mass. for the weekend two weekends ago, and my 400EX PRM skids held out great. I had AC and they did not even last a season. Get the PRM!!!

 

We have 2 of their skid plates. They work great so far. The PRM are thicker than other aluminum plates, theres are .250 or a 1/4 inch thick where others are .190 which is slightly less than 1/5 of an inch.

Money well spent.