The Protek Max tubes feature a proprietary shape and construction that is extremely resistant to punctures.
- Contains liquid sealant that immediately closes small punctures to prevent air loss
- Excellent air pressure reteintion
- Square shape retains shape better and resists twistin during installation
- Excellent air pressure retention
|Labeled Size||26 x 1.85-2.3|
|ISO Diameter||559 / 26" MTN|
|Valve||Presta Short 32-40mm|
Thursday, Apr 18 2019 (about a year ago)
Michelin Protek Max Tube (Presta Valve) (700 x 32-42)
Disappointed initially when I found that both of the tubes required new valve cores. I was able to clean one, and replaced the other with a spare I had. It was a bummer that new, expensive tubes required new cores. Otherwise the tubes seem like they will be good for gravel.