Moose Racing Inner Tube - Standard - 18" - TR-4 - Center Metal Valve M20064

Features: "Real butyl tubes" made from 100% butyl polymer, unlike other "butyl" tubes, which are blended butyl polymer and natural rubber Each tube is individually boxed with a full range of sizes and valve stem types clearly marked on each box end 100% butyl tubes minimize natural air leakage and maintains air pressure for longer period of time All stems are TR-4 type for valve stem Specifications: Inner Tube Valve Stem Type: TR-4 (Round Base)/Center Metal Valve (Threaded/Nuts) Riding Style: Street/Off-Road Tube Fits Tire Size: 110/100-18/120/90-18/4.00-18/5.10-18 Material: Butyl Polymer Duty: Standard Product Name: Inner Tube Mounting Position: Front/Rear Type: Motorcycle Units: Each Rim Diameter: 18"