ITEM NAME:Alloy Rubber Wheel Rim Security Lock Bead Stop 1.6 inch Motorcycle Pit Dirt A7C1 Alloy Rubber Wheel Rim Security Lock Bead Stop 1.6 inch Motorcycle Pit Dirt A7C1 Cast Aluminum to reduce corrosion. Molded Rubber to protect the tube. Ribbed aluminum contact surface ensures the tire is securely locked to the rim. available to fit most off-road motorcycles (rim width is usually stamped on the outside f the rim).Material:Aluminum & RubberIt stops the inner tube moving in the rim and tearing the valve color: black Material:metal & Rubber Size:1.6mm Package Included: 1 x Wheel Rim Security Lock.1 x Wheel Rim Security Lock. Cast Aluminum to reduce corrosion. Molded Rubber to protect the tube.