Generic Ultralight 700C Bike Inner Tube TPU - Road Bicycle Tire 28'' Compatible with 700x18/23/25/28/30/32C French Type Valves 45/65/85mm Only 30g 2Pcs

Ultra light】The TPU bike inner tube is only 30g, which is about 100g less than the traditional butyl rubber inner tube, reduce the burden on the bicycle, provide more sensitive acceleration and make the ride lighter. The TPU bike Inner features a small size for easy storage, and is lightweight for you to conveniently carry it around.They are take little space in a saddle bagFits multiple tire sizes】2PCS in the package. Suitable for range of bikes,compatible with many tire sizes: 700x18/23/25/28/30/32c-Presta Valve Length 65mm(Can be disassembled)Material】The bike inner tube is made of TPU material, puncture resistance(Free patch for all inner tubes), abrasion resistant, tough to be used for a long timeReduce rolling resistance】The friction force generated on the tire is small, which can achieve the maximum speed and performance. Instantly add watts to your ride,Less rolling resistance meant you immediately got a little faster without working harderNote】The bike inner tube should not be inflated more than 6 PSI before install, otherwise it will be deformed or blown out