The rain fly mudguard is the worlds lightest and quickest installing full coverage rear fender which is perfect for road and cyclo cross bikes you can attach the fender in under a minute with the 4 re usable zip ties as the fender is slightly flexible you are able to position the rain fly to its optimum position where it is covering all of your wheel coming in an eye catching yellow or a stealth black you can choose the one that fits your needs keep you favourite jersey clean whilst keeping