Specialized Road Turbo Presta Valve Tube With Talc - Components
Tried new road tires (Specialized Turbo Pro) 28mm with BBB inner tubes on my Gravel bike. No marks on the tire, at least not one I can spot. But inner tube has
Specialized MTB Turbo Ultralight Tube with Talc 29 Inch | BIKE24
Specialized Turbo Inner Tube with Talc 700x20-26c - 48 mm valve