Schwalbe freeride mtb tubeschwalbes freeride mtb tube is lightweight and durable with stable air pressure made from a rubber compound to guarantee air retention this reliable freeride mtb tube does exactly what you need it to do with zero fuss featuresmaterial rubber compounddurableless air leakage and less to pumpair retention quality controlreliablestable air pressureweight 185gbuyschwable wheels tyresfrom chain reaction cycles the worlds largest online bike store