Tubolito S-Tubo CX/Gravel All Tube Ultra-Light and Robust The Tubolito S-Tubo CX/Gravel Tube was made for the widths of 30 - 47mm and is ready to be used for all cyclocross and gravel uses. The S-Tubo is compact and perfect for use as a spare or for everyday use. It is as robust as a standard inner tube and is compatible with disc brake rims only. Features Can be used as a spare or for everyday use As robust as a standard inner tube Compatible with disc brake rims only Tire widths: 32 - 50mm SPECIFICATIONSWheel Size700c Width30 - 47mm Valve Type Presta Removable Core No Stem Length / Type42, 60mm Weight35g | Tubolito | S-Tubo Cx/gravel All Tube 700X32-50Mm, 60Mm Valve