Deda Dog Fang Bicycle Chain Keeper Review Posted by Pelicandy October 12, 2018 in Drivetrain Components keeps the chain from falling off in case of an over-shift Black bolt-on plastic It keeps the chain from falling off in case of an over-shift. Black bolt-on plastic. Random Products K-Edge PRO Road Braze-on Chain Catcher SRM w/Power... Shimano CASSETTE SPROCKET, CS-HG400-9, 9-SPEED, 12... USAMade 64mm BCD 22T 4-Bolt SharkTooth Pro Mountai... SHIMANO 105 5700 Hollowtech II Road Bike Left Side... Cycling Deda Elementi Outdoor Recreation Parts & Components Sports & Outdoors