Tubolito Tubo CX/Gravel Tube Ultra-Light and Robust The Tubolito Tubo CX/Gravel Tube was made for the widths of 30mm-40mm and is ready to be used alongside both rim and disc brake setups. The Tubolito Tubo CX/Gravel Tube is twice as robust as standard tubes, which adds to its durability and puncture protection. Due to its low weight of 54g (30mm), it guarantees a lightweight setup that'll have you enjoying your rides with fewer worries in mind. Tubolito is setting up to be the new face of cycling tubes in a market being taken over and dominated by tubeless set-ups. Features Weight: 54g (30mm), 100g (40mm)Valve:42mm, 60mm | Tubolito | Tubo Cx/gravel Tube 32-50Mm, 42Mm Valve