I bought my Swift directly from Peter, which is to say: this was some while back. He set it up for me with a few options including fenders / mud guards. What's installed is a standard ("off the peg") Planet Bike 20" / 406 product. As mentioned, this was some while back. They've stood the test of time, including some disassembling, packing, and reassembling. They've worked very well for me.