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WEIYINGSI 12x2.40/2.75 Inner Tubes with TR13 Straight Valve Stem, 12.5x2.50/2.75 Heavy Duty Inner Tubes for Razor MX350 MX400 X-Treme X-560 EZip Electric Scooter Mine Dirt Pocket Bike 2 Packs - WHAS-5-28B
WEIYINGSI WHAS-5-28B
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Replacement 12x2.40/2.75 inner tubes --- Our upgraded butyl rubber 12x2.40/2.75 inner tubes fit for Razor Dirt Rocket MX350 MX400 mini dirt bike, 2 stroke 47cc 49cc pit dirt bike and other scooters, kids bicycle that use 8.5 inch rim. Premium Materials & Strong Shock-Absorbent --- Each 12 1/2 x 2 3/4 tire tube has 45% more rubber content, 4.8x stretch rate, Make the inner tube expandable and compatible 12.5x2.50, 12.5x2.75, 12.5x3.00, 12x2.40, 12x2.75 and thicker sidewalls that make it puncture-proof. Superb Air Retention --- High Butyl rubber content adds better air retention to 12 inch tire tubes to prevent air leakage. Butyl rubber inner tubes can hold air up to 6 months without leaking More Convenient To Inflate --- Rubber coated TR13 straight valve stem makes attaching air pumps quick and easy. The tough rubber stem seat is also tear resistant to extend the service life of the valve All in one Kit --- 2 x 12x2.40/2.75 inner tubes, 5 x environmental valve cores, 1 x valve core wrench, 2 x colorful aluminum valve caps
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