Continental Presta Tube 29 x 1.75-2.5
Continental, one of the premier makers of race day tires has put out a series of lightweight tubes designed to keep your rolling weight down and puncture resistance up.
High quality tubs with removable cores. The best tubes I have ever used and the only ones I use.
These are great tubes i'm sure, but don't lose riding days like I did. These tubes are 29ers, despite the description.