The set of 2 V BIKE inner tubes for 26" bicycles are made with a 100% isobutylene-isoprene rubber (IIR) structure in butyl rubber with a thickness of 0.9mm. This set of 2 V BIKE inner tubes is presented in an indivisible pack of 2 units in skin. Its thick 35mm valve (Schrader) makes it compatible with all types of air pumps. They are ideal for MTB, city, trekking and touring. RECOMMENDED USE: MTB CITY TREKKING/ TOURING VALVE TYPE: SCHRADER VALVE LENGTH: 35 MM RIM DIAMETER: 26 WIDTH: 1.7 - 2.25 RECOMMENDED USE: MTB CITY TREKKING/ TOURING RECOMMENDED USE: MTB CITY TREKKING/ TOURING