Durable and Lightweight Gravel Bike Inner Tube for 700C Tires 3550C 46g
Ultralight design，only 46g，Lose weighton your tires，Reduced spinn mass where there are more(wheelsets). Weight ：46g (士3g). support 700C for gravel bike ，35C-45C ，35C.38C，37C，and 700C x32C,700x47C ,700x50C，700x48C.