Pirelli P Zero SmarTUBE TubeOh Yeah, It's Big Brain TimeLightness plays a key factor in how fast a wheel can rotate. With a lighter setup, your wheels can rotate faster and you can accelerate more efficiently. The Pirelli P Zero SmarTUBE Tube is the most advanced inner tube in the Pirelli lineup. This tube is made of Thermoplastic Polyurethane, also known as TPU, making it 70% lighter, up to 50% more compact, and as resistant against punctures as an equivalent tube made of butyl. FeaturesUltralight at only 35g per tubeMade of TPU that is lighter and just as durable as butyl tubesMore compact so you can pack more in your bagSPECIFICATIONSWheel Size700cWidth23 - 32mmValve TypePrestaRemovable Core-Stem Length / Type60mm, Not ThreadedWeight35g | Pirelli | P Zero SmarTube Tube 700 x 23-32mm, 60mm