Michelin Inner Tube - Heavy Duty - 21" - TR-4 - Center Metal Valve 40953

Features: Splice is always placed opposite the valve, which helps to provide a more balanced tube Features an overlap splice which is stronger than the butt splice used in most others Michelin Airstop tubes are used by those who want the very best Specifications: Product Name: Inner Tube Tube Fits Tire Size: 2.75-21 Inner Tube Valve Stem Type: TR-4 (Round Base)/Center Metal Valve (Threaded/Nuts) Material: Rubber Duty: Heavy Duty Type: Motorcycle/Off-Road Mounting Position: Front/Rear Riding Style: Off-Road/Street/Adventure Touring / Dual-Sport Rim Diameter: 21" Units: Each