Following is a transcript of the video. Narrator: This is a tire technician disassembling what's known as a foam-filled tire. It's a grueling process, but an important one for these special kinds of ...

Tires filled with pressurized inner tubes have helped to propel all kinds of bicycles for the past 100 years, but these tires are vulnerable to puncturing and require regular inflation. Airless bike ...

Foam-filled tires are made of regular rubber but replace the air inside with hardened liquid urethane. While they come with benefits like being impervious to flats, they can only be used on ...