Planet Bike Hardcore Recumbent Bicycle Fender with Stainless Steel Hardware and Mud Flap (Rear, Black, 20-Inch Tires/50mm Wide) Rear recumbent fender for protecting from rain, sleet, or snow Unbreakable Superflex all-weather polycarbonate holds up to abuse Durable, double-riveted mudflap keeps you dry while riding Adjustable stainless-steel stays provide more secure fit on bike Measures 50 mm wide; limited lifetime warranty