Set of 2 3.00 - 2.75-21 Inner Tube with TR4 Straight Valve Stem Replacement for 90-80-21 90-90-21 100-80-21 Chinese Dirt Bikes Pit Bikes Trail Bikes

This is brand new aftermarket replacement Set of 2x 3.00/2.75-21 Inner Tube Package Includes: 2 x Inner Tubes 4 x Dust Caps 3.00/2.75-21" inner tube is typically used on 21" front Tire of Chinese Dirt Bikes Pit Bikes Trail Bikes Tube type design makes fixing as simple as installing on your existing wheel and inflating with a hand pump.No Special Tool Required, The Inner Tube can be replaced within 5 Minutes Valve Style; TR4 Straight Valve Stem Fitment: Fit 2.75/3.00-21 (Front Wheel) As Well As 90/80 - 21, 90/90 - 21, 100/80 - 21 NOTE: To Ensure You Purchase The Correct Product, Please Read The Description Carefully. Thanks For Your Attention. 180 Days warranty for our product. We promise 100% satisfaction customer service, contact us if you have any questions and we will provide the best customer care. Before changing the tube, please check whether have some stones or sharp things that may break the tube that stay in your Tire. Remember to always add a little air (to give the tube form) to the new inner tube before installing it. This will prevent it from bunching up and/or causing a pinch flat or possibly blowing the Tire off the Hub Rim (when you immediately and fully inflate) which ultimately will pop the tube.