Schwalbe SV11 Extralight Inner Tube - 26 x 1.00 / 650 x 23 - 60mm Presta Valve
Extralight tube. They believe there are two reasons for this success. Presta valve. Schwalbe Air Plus Tube SV21AP 27.5 x 1.50" - 27.5 x 2.40" Presta Valve 40mm. Schwalbe Air Plus Tube AV19AP 29 x 1.75" - 29 x 2.40" Schrader Valve 40mm.