I'm sure some people know of fenders that mount to beam racks, but I don't have a beam rack. I have a Topeak Explorer rack (http://www.topeak.com/2007/products/racks/explorer.php) and really want to put a fender on my bike. The back of the rack has a couple of eyelets for a tail light, but I am hopting to find a fender (or half fender) that could attach there. I only have one set of dropouts (I think that is what the eyelets are called) back on the chain stays and would rather not mount both the the rack and the fender there.

I have recently become a much more serious commuter and the rides in the rain get rather dirty. I appreciate any input.

Edit: I spoke with Topeak and they won't admit to knowing of anything. A search at some of the more well known online bike stores has had no success either.