(2-Pack) 100/90-19 (4.10 x 19) Heavy-Duty Motorcycle Inner Tubes - 3mm Thick Butyl Rubber Inner Tubes - Pinch and Puncture-Resistant Tubes - TR4 Valve Stems - Designed for Off-Road and Motocross Tires

100/90-19 (4.10 X 19) Heavy-Duty Motorcycle Inner Tubes Features ●Even rubber molding and airtight joints ●Made of premium-quality fresh butyl rubber that can be stored for months without dry rotting ●3 mm thickness for heavy-duty off-road motorcycle use ●Reinforced TR4 straight and threaded valve stem with vulcanized base ●Pinch resistant puncture-resistant and explosion-proof ●Excellent shock and vibration damping properties ●Suitable for both front and rear motorcycle tires ●Designed specifically for use on motorcycles motocross bikes dirt bikes and pit bikes ●It will last for thousands of miles even with a heavier passenger and rougher tracks ●Enjoy high-quality inner tubes for the fraction of the original cost TR4 Valve Stems For High Torque Tires An inner tube won’t do much for motorcycles if it doesn’t have the right valve stem. The TR4 straight valve stem has a reinforced threaded stem secured and locked in place by nuts and washers. It’s the perfect valve stem for motorcy