Nothing can ruin a bike ride like a flat tire. While a crash of course is far worse, a flat is just downright annoying and frustrating because it is fairly minor but yet just enough to get you off the bike. Now Benjamin Krempel has developed a system that could keep you riding instead.
The PumpTire system consists of a tire, an inner tube that clips into it and an air valve. The concept is a different as clincher tires are from tubular tires. Basically the PumpTire is designed to automatically pump air into the inner tube by actually using the compressive effect when the tire rolls. To ensure that it doesn’t just keep inflating, the tube stops pumping when the desired pressure is reached.
Video after the jump Continue reading No Need to Pump It Up With Self-Inflating Tires