biking

I've never wanted to attach a water bottle cage to my bike; I like it to be as free of clutter as possible, both for aesthetics and to keep the weight low. But I can't say that I've never wanted to have a quick drink handily accessible when I'm riding without a bag.

That's where this bottle cap clip concept by Matthias Ries comes in.

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For years, the increased accuracy, smoothness and reliability of electronic shifting has been perhaps the ultimate goal for high-performance-bike designers. After several companies’ attempts failed—suffering from breakdowns in bad weather, poor battery life or unbearable complexity—Shimano’s Dura-Ace Di2 has finally delivered it. [ Read Full Story ]

At the starting dock of the Olympic triathlon trials, the expression on Andy Potts’s face seems to say I will kill you with my eyes. As the starting gun fires, he plunges into the Black Warrior River in Tuscaloosa, Alabama, and, in a burst of white foam, quickly pulls ahead of nine rivals. The second-ranked Hunter Kemper manages to hold pace with Potts for a few minutes, then drifts back into third place.

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To power up a mountain, you need a stiff bike frame that transfers pedaling force straight to the wheels. But zooming downhill without jolts or spills calls for more cushioning. So Kona’s Coilair bikes feature a lever that automatically shortens the shock when you pedal and lengthens it when you coast. The lever also pushes the seat closer to the ground, lowering the center of gravity to match the stability of a dedicated downhill racing bike.

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While the news that Mayor Bloomberg's plan for NYC congestion pricing was defeated is something of a low point for urban cyclists, that coming out of Washington, D.C., is much more encouraging. Next month D.C. will become the first U.S. city to launch a public bike sharing venture like the wildly popular Vélib (short for vélo liberté) program in Paris. One hundred and twenty bicycles will be available at 10 central locations for an annual membership cost of $40.

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