zebatka bmx shadow maya sabotage guard sprocket ridehubThe Shadow Maya Sabotage Guard Sprocket is a modern interpretation of the classic guarded sprocket design , combining old school style with modern technology . Signature to Joris Coulomb , this sprocket offers maximum chain and sprocket protection thanks to a reinforced, low friction plastic guard bonded to a sturdy aluminum body . The four bolt guard ensures complete stability, and the gap between the guard and the teeth has been designed to work