Manufactured with a thermoplastic elastomer, called TPU. These tubes are lighter, and more robust than traditional butyl rubber inner tubes

Even lighter and more compact - due to a removable valve
S-Tubo-MTB’s can be rolled up to an extremely space saving size (3.5 x 5 cm)
Despite a light overall weight of only 43g they are as puncture resistant as standard rubber tubes for everyday riding
Also perfect for use as a spare tube for riders using a tubeless system
Ready for disc brakes only
Labeled Size: 27.5"/29 x 1.8 - 2.5"
Shaft Type: Threaded
Tube Compound: Thermoplastic Elastomer
ISO Diameter: 584/622 / Mountain / 27.5"/29"
Valve: Presta Med 42mm
Weight: 43g.