Knog Oi Classic Bike Bell Ring Cycling f/Bicycle 23.8-31.8mm Handlebar Brass LRG FREE shipping within Australia In stock. Available via Buy Online Only Share Loading Facebook Like button... Knog Oi Classic Bike Bell Ring Cycling f/Bicycle 23.8-31.8mm Handlebar Brass LRG FREE shipping within Australia In stock. Available via Buy Online Only Share Loading Facebook Like button...