2 Pack 29" Heavy Duty Bike Tubes 29 x 1.75/2.125(45/54-622) Bicycle Tubes AV 48 mm Valve, Compatible with 29x1.75 29x1.95 29x2.0 29x2.10 29x2.125 Mountain Bike tire Tubes, Puncture Resistant
【Broad Applications】 Compatible with 29x1.75 29x1.95 29x2.0 29x2.10 29x2.125 26x2.2 26x2.25 26x2.3 bike tires, 48mm Schrader Valve. Suitable for moutain bike, hybrid bike and cruiser bike tire tubes
【High Quality Inner Tube】 The bike tube is made from premium butyl rubber, 4 times stronger than ordinary rubber materials. Thickened inner tube provides good airtightness, has strong stability and shock absorption function, effectively extends usage time, and reduces inflation frequency. No bumps will be felt and effectively prevent punctures, advanced 29x2.125 inner tube adds comfort riding
【Easy to Install】Vershin inner tubes are equipped with 2 Pcs levers for removing and mounting 29x2.125 bike inner tubes, preventing fingers from getting caught in the tire without damaging the rim
【Important Note】When replacing the inner tube, be sure to add some air before installation to avoid twisting or clumping. After installment, please check the tube is at the right position between steel and tire, make sure the tubes are not clamped by them. Then inflate the air according to pressure standard of tire
【Air Tightness Test】After receiving the product, please carefully check if there are any holes in the inner tube. You can put it in water to check its air tightness. If there is any damage, we provide replacement service. If you have any questions during the purchasing process, please inform us promptly. We're happy to assist you