Pirelli Smartube road tube 

The Pirelli P Zero Smartube Road, developed by professional cyclists, is now available for everyone. This bike tube is both lightweight and strong. It weighs up to 70% less and is 50% more compact than standard butyl tubes, while being more resistant to punctures. It's ideal for those using clincher tires and seeking a lightweight spare tube.

• Tire size: 700x23 (23-622) to 700x32 (32-622)
• Valve length: 42 mm
• Brand: Pirelli