Windycityjohn...I have never even thought of pea gravel. I can definitely see that being a problem. The worst I ride in is dirt, a little mud, a few water puddles, and smaller rocks on the trails. I guess a single plate would be fine as more people could use that design and it would still serve the purpose to protect the chain/ sprocket. Plus it would keep the cost lower too making this item more attractive to more people. I guess we will see what JD comes up with for us....I'm sure we won't be disappointed. My ltr blingstar stuff is off the bike ready to be shipped out tomorrow. Thanks for all the input from everyone....will keep everyone posted on the progress.