Pinch flat on day one
- Familiarity: I've used it once or twice and have initial impressions
- Fit: True to size
I got this after getting a my first pinch flat after a year of riding. I was a little paranoid, so I was running higher pressure (26psi) for my weight (135lbs). I was also checking my tire regularly after every run.
After my last run, I ended up with a small pinch flat. Maybe it's coincidence, but my tire lasted only a day with this insert. Because the insert takes up so much volume the air volume in the tire is much smaller. So even a single burp can drastically reduce the pressure of your tire. Regardless of how it happened the insert didn't protect my tire from a pinch flat.