PumpTire is an ingenious self-inflating bicycle tire that inflates to the correct pressure while it is being used (video). PumpTire founder Benjamin Krempel is raising funds for the project on Kickstarter.
PumpTire is commercializing the first self-pressurizing bicycle tire. Imagine taking your bicycle out of the garage and never having to fill up the tires or even check the pressure. Or imagine yourself being able to change your tire pressure on-the-fly with a simple adjustment from the handlebars. PumpTire is developing both of these systems. The self-inflating, self-adjusting technology is incorporated directly into the tire and is compatible with current rims, making it a simple addition to any bicycle.
photo via PumpTire