Michelin C4 Protek Max MTB Tube

. Punctures due to perforation or nipping impact edges of sidewalks in the city or rocks for mountain bikes, etc. are a major fear among all cyclists. Repairing or changing an inner tube is not always a very simple operation. An inner tube must be regularly re inflated Thanks to its uneven design, the MICHELIN Protek Max inner tube undergoes a "compression" reaction in the event of piercing or nipping the hole closes up naturally, whereas a classic inner tube has an "extension" reaction balloon effect This self plugging effect is enhanced by adding the preventive sealant originally supplied Features Exceptional puncture resistance Self sealing liquid inside Valve Presta 40mm Width Capacity 4758 Diameter Capacity 559 Weight 330gBuyMichelin Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.