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The Self Inflating Tire is simpler than it sounds, consisting of just two components: a peristaltic pump and a valve that stops over-inflation. Basically, a round tube embedded in the tire's sidewall is compressed at the bottom as the tire rolls, forcing air into the tire. Once it's inflated to the proper pressure the valve — which can be electric or mechanical — shuts off. That's it. Wish you'd thought of it? More »
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