Maxxis Welter Weight 27.5x3.0-5.0'' 48mm Presta Tube 1.0mm Walls RVCThe Maxxis Welter Weight 27.5 x 3.0-5.0'' 48mm Presta Tube is engineered for aggressive riders who require durability in their inner tubes. The middle-weight tubes in our line are targeted to all disciplines of riding. 1.0mm Walls for more durability.4717784040158