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This is a 16x1.1-1.4" tube, used at our shop on our Brompton folding bikes, except for the P Line, which may use this tube or the thinner presta valve SV4 tube. Replace P Line tubes with same style that originally came on your bike.
This is a 26x1.5-2.4" tube, which is most commonly used on our Workcycles Fr8 bikes, the rear wheels on the Onderwater Tandem, and the rear wheels on the Nihola and lots of other Dutch cargo trikes.
This is a 700x28-45 mm tube (it will also fit 27" tires and 700B tires, i.e. 635 mm tires) which is most commonly used on our Dutch city bikes like the Workcycles Oma, 2-Tube Transport, and Secret Service, plus the Gazelle Tour Populair).
This is a 24x1.5-2.4" tube, commonly used on Christiania cargo trikes and the rear wheel of the Triple Lindy cargo trike.
This is a 700x1.5-2.4" tube (in other words, it is suitable for 29ers up to 2.4" wide, it also accommodates 700B and 650B tires). This is most commonly used on our Pilen bicycles.
This is a 700X18-28 mm tube with a Schrader valve.
This is a 20x1.5-2.35" tube, used most commonly on front wheels of many of the front loader cargo bikes we sell.