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.
Rated 3 out of 5 by edozio Deluso
Per 6 mesi niente forature, poi due forature lo stesso giorno con piccole spine di rovo. Una forse si è sigillata, l'altra neanche morta. Tornato a casa a piedi. Passerò al tubeless.
18 June 2014
Rated 4 out of 5 by MLST Different
I like to try new things and I noticed these at a show a while back and thought they are worth a go.
They are quite heavy but they do have slime in so that's to be expected, i fitted them on Stans Flow rims with Maxxis minion's and they seem decent enough.
I havent noticed any real benefit with the square profile but that's to be expected.
OK tubes but no punctures yet to fully test.
30 April 2014