Bike Tube 700 x 25C 28C - Road Bike Inner Tube Run Flat - Bicycle Tube with Presta Valve Run-Flat Performance Rim and Wheel Protection

["No More Nervous about Flat Tires-- Bicycle tire blowouts are a very distressing thing that can put an end to the enjoyment and cause serious injuries. Say goodbye to the inconvenience of punctures and enjoy a smooth and uninterrupted ride with the airbag inner tube.","Airbag Bike Tube-- When the tire is inflated, the inserts will be compress so they don’t touch the tube sidewall. The Airbag insert didn’t affect the tire's rolling resistance at all. If you experience a puncture, the resulting drop in air pressure causes the insert to expand instantly and fill the tire. This allows you to continue riding on a flat and keeps the tire beads seated so your deflated tire doesn’t roll off the rim in corners.","Run-Flat Capability-- Innovative road bike liner tube that adds impressive safety, function, and damped ride feel. When flat tyre, the airbag expands instantly to support the tyre - No risk to ride on the wheels for 24 hours (80kg cyclists for 18KM)! The ability to ride to a safe place and change the tyre after a blowout helps to improve safety on the road.","Compatibility-- This bicycle tube fits 700c tires with 25mm and 28mm diameter(700 x 25C 28C). It can be repaired and reused after a puncture. Inner tube weight appro 241.6g (nozzle length 55mm).","Durability-- The legendary combination of durability, protection, and run-flat performance of the air-bag tube(foamed rubber), great for professional riders who are concerned about safety and don't want to add too much weight. Although replacing airbag tire tubes on both wheels will increase the weight by 250g (for a road bike), they didn’t affect the tire's rolling resistance at all.","NOTE-- It is recommended that the airbag bike tube is left to stand for 48 hours after inflation in order to achieve support. Flat tires with more than 5 strokes may reduce the life of the tube."]