Heavy Duty 2.75/3.00-19 Inner Tube（70(80)/100-19）, 2.1mm Thick Butyl Rubber, TR4 Valve Stem, Compatible with Segway X160, X260, Surron LightBee X, Talaria Sting MX3/MX4, UltraBee, Razor Moto. Engineered for rugged trails and mountain slopes.
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