The zefal shield r30 700c mudguard has been expressly made for road bikes this mudguard ensures stable mounting via its u brackets and offers the best protection by covering almost the entire wheel zefal shield r30 700c mudguard md quick fixation easy to mount and remove road bikes made for road bikes with a 30mm width wheel cover better protection of the rider and following companions by covering more than 80 of the wheel u stays keep the mudguard rigid no vibration