After long research for available on market skid plates for Honda XR400R my choice fell on this Devol skid plate. Perhaps not the best one, but quite good for affordable price. Easy to install, but may need some rubber to reduce vibration and sound resonation, but that’s the problem of all metal skid plates. Would recommend.
used on a 2001 XR400R, bolted right up and looks like it will protect pretty well.
it was 1/8" thick and weighed 3 lbs.
Pic does not show but there were some air vents in the front also. other then that it looks like the pic