Michelin B4 Protek Max Inner Tube. Conquer any ride with the MICHELIN B4 Protek Max inner tube, offering ultimate puncture protection. Its unique knobby texture compresses around punctures, while integrated sealant actively seals leaks, preventing sudden flats. Enjoy slower, manageable leaks and get home safely. This advanced butyl tube holds air twice as long as standard tubes, reducing pump-ups. Its innovative square profile ensures effortless installation, preventing twisting. Ideal for touring, commuting, and e-bikes, the Protek Max delivers unparalleled reliability and peace of mind for demanding cyclists. MICHELIN B4 Protek Max Inner Tube: Ultimate Puncture Protection for Uninterrupted RidesExperience the next level of cycling reliability with the MICHELIN B4 Protek Max inner tube, a revolutionary product in the wheels and tyres category, engineered for cyclists who refuse to let a puncture ruin their ride. Designed for maximum durability and peace of mind, the Protek Max is the ultimate upgrade for touring cyclists, daily commuters, and avid MTB cycling enthusiasts who demand robust performance from their equipment.The genius of the Protek Max lies in its innovative approach to puncture prevention. Unlike standard inner tubes that can catastrophically fail, the Protek Max is designed to actively combat air leakage. Its unique, knobby surface texture is a game-changer, in the event of a puncture from a thorn or piece of glass, the tube´s structure reacts by compressing around the object. This compression effect effectively pinches the hole closed, preventing the dreaded balloon effect where a small puncture quickly enlarges and causes a rapid loss of air. This means that instead of a sudden, ride-ending flat, you get a much slower, more manageable leak, often giving you enough time to get home or to a safe place to make a repair.This self-sealing capability is further enhanced by an integrated sealant. This potent combination of mechanical compression and active sealing works in harmony to provide a formidable defence against flats. The result is an inner tube that actively works to keep you rolling, delivering unparalleled confidence on long tours, rugged trails, or busy city streets. Furthermore, the advanced butyl construction and sealing technology mean the MICHELIN Protek Max inner tube holds air for approximately twice as long as the classic Michelin Airstop, reducing the frequency of pre-ride pumping and ensuring more consistent tyre pressure for optimal performance and handling.Michelin has also focused on user-friendliness. Thanks to a new and improved square-shaped profile, the Protek Max is significantly easier to handle and install, preventing it from twisting inside the tyre during assembly. This thoughtful design makes it a practical choice for both professional mechanics and at-home cyclists.Features:* Ultimate Puncture Protection: An innovative design with an integrated sealant provides a superior defence against flats, offering a self-sealing effect for maximum ride security.* Easier Assembly: A new, unique shape simplifies the installation process, preventing the tube from twisting and ensuring a perfect fit every time.* Ideal for Demanding Use: Perfectly suited for all touring cyclists, commuters, and e-bike riders who prioritize advanced puncture protection and reliability over all else.Technical Specifications:* Product Type: Inner tubes* Discipline: MTB Cycling* Size: 27.5x1.75 - 2.35 (ETRTO 44/58-584)* Valve Type: Schrader* Valve Length: 48 mm* Material: Butyl. tradeinn Bikeinn