Outer Limits 4x4 Board

Hope this may get a few more ideas
http://www.outerlimits4x4.com/phpBB2/vi ... hp?t=90021

As has been stated in the zook section, the BFG M/T are notorious for this. The rim protector lip scoops dirt into the beed when you deflate the tyres and drive through mud. Does it on mine everynow and then. Very annoying.