The schwalbe 14x175 schrader tube schwalbe tubes retain air pressure considerably longer than others each schwalbe tube is individually inflated and inserted into a mold this ensures the even wall thickness and excellent air retention schwalbe 14x175 schrader tube features the quality and the material purity of the rubber mixture directly effects the quality of the tube consistent quality control brings with it the security of use each tube is inflated at the factory and s