Save space, save weight and roll fast off-road with the Tubolito Tubo MTB Plus Inner Tube.47% lighter up to 135g weight saving per wheel45% smaller packed sizeAs robust as a standard butyl tubeValve length: 42mmWeight: 105g (27.5 ), 110g (29 )The Tubolito Tubo MTB Plus Inner Tube offers a massive 47% weight saving over standard butyl tubes and as a result it has a 45% smaller packed size so it takes up much less space in your saddle bag/jersey pocket. Not only are Tubolito tubes lighter than standard tubes but they are much tougher as they are manufactured with a thermoplastic Polyurethane elastomer, called PU. This group of materials is known for its durability and excellent damping abilities. The Tubolito Tubo MTB Plus Inner Tube has a 42mm Presta valve and is designed to fit 2.5-3.0 inch tyre widths. If you do get a puncture with the Tubolito it ll be quick and easy to repair using the Tubo Flix Kit (sold separately).