BBB Cycling BTI-201 TPU Road Tube — engineered for road cyclists who demand reliability and weight savings. This lightweight 700C tube features a durable TPU construction that resists pinch flats and extends tire life, paired with a removable 65mm alloy presta valve core and x2 patches. For easy installation and maintenance. Sized for 25-32C tires at just 26 grams, it delivers the performance edge you need without the bulk.