The Tubolito MTB inner tube is an ultra-light inner tube made from an innovative material developed for mountain bikes. Compared to a conventional inner tube, it offers significantly greater puncture resistance and a 60% weight saving!Weight 82g Designed for disc brakes only Reduces the rotational weight of the derailleur Compatible with 1.8" - 2.5" Only in the version with SV42mm gallus valve Effective way to reduce overall bike weight The rolling resistance of Tubolita MTB is 4,6W lower at 28.8 km/h than a conventional inner tube The Tubolito can be temporarily inflated with CO2, but it is recommended to deflate it immediately after completion and inflate it with conventional airInstallation in the rim should be done with the Tubolito inflated to 0.2-0.5 bar. Inflate to this value on the outside of the rim, ensuring that the valve faces inwards to avoid unnecessary stress on the material.