It's been a while since we've tested inner tubes at the Lab, and we have been hoping to find some intermediate sizes that strike a good balance between volume and pressure requirements. We seem to have found a winner here. Unfortunately, a few minutes of video were lost, but as can be seen on the pressure recorder, the pressure for this one was still slightly on the upswing when the video resumed, and then remained remarkably constant. These are certainly a test of endurance.

It's been a while since we've tested inner tubes at the Lab, and we have been hoping to find some intermediate sizes that strike a good balance between volume and pressure requirements. We seem to have found a winner here. Unfortunately, a few minutes of video were lost, but as can be seen on the pressure recorder, the pressure for this one was still slightly on the upswing when the video resumed, and then remained remarkably constant. These are certainly a test of endurance.