kerkko.fi

 

Revontulet

Revolights consist of two thin LED rings that mount directly to each wheel rim. Power comes via a wire to the hub where a USB rechargable lithium-ion battery is held in a special bracket. A small magnet is secured to the fork to provide speed and orientation information to the rings.

Revolights detect how fast your tires spin and only activate the appropriate LEDs so that you are always only blowing out light behind and in front of you (and not in your own eyes). When you are slowing to a stop, the light pattern changes to a safety-cycle, going around in a circle.


http://kck.st/nRFdb4
Filed under: Cool Cycling Kickstarter Lights Revolights Safety Technology
 

Self-inflating bike tire

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. PumpTire is promoting the project on Kickstarter.

http://pumptire.com/
Filed under: Cool Cycling Innovation Kickstarter PumpTire Technology Tire
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