MICHELIN B4 Protek Max inner tube

The innovative Michelin Protek Max inner tube is able to prevent air leakage in the event of a puncture. Thanks to its knobby surface, the Protek Max compresses and closes the hole in the event of a puncture where an ordinary inner tube would enlarge the hole (balloon effect). The self-sealing effect is additionally enhanced by sealant in the tire. The Protek Max inner tube holds air for about twice as long as the classic Michelin Airstop. Features: - Ultimate puncture protection thanks to integrated sealant - New shape makes assembly easier. - Ideal for all touring cyclists, advanced puncture protection. Specifications: - Type: Inner Tube - Size: 27.5 x 1.75 - 2.35 - Valve Type: Schrader valve - Valve length: 48 mm - Material: Butyl