Create Your Own Electricity With Your Feet, With This Simple Bike-Powered Charger
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By
Bill
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The Atom easily attaches to your back wheel and then uses your pedaling energy to charge a battery that you can use to power your devices.
Bicyclists who want to charge their mobile devices as they ride have options: you can choose between various dynamos (“hub,” “bottle,” “bottom bracket”), decide if you can make peace with the resulting weight and drag, and research the scattered manufacturers of devices that convert the resulting electricity into a usable form. In other words, there are options, but if your idea of DIY doesn’t involve electrical engineering, the options aren’t great.
This is the niche that Aaron Latzke saw on a trip to Belgium, on a work trip for his job as a mechanical engineer. He saw bikes everywhere with lights powered by bulky “bottle generators” (so-called because they look like bottles strapped to the tire). “That’s such an awesome technology,” says Latzke, “but it’s so dated.” For the last year and a half, Latzke has been working on updating this technology as CTO and co-founder of Siva Cycles. Today, that company is coming out of stealth mode and launching a Kickstarterto fund the manufacturing of the result: The Atom.
The basic idea is simple: Add the Atom to your back wheel, and while you ride it will deliver power both to any device that plugs into a USB and to a portable battery pack. The $105 price point and straight-out-of-the-box functionality is designed to appeal to bicyclists who want the technology without the hassle. “We want to go after the 95%,” says CEO and co-founder David Delcourt. “We don’t want to go after the 3% that understands the ins and outs of bicycle energy.”
Nearly 30 years ago, J. David Rhoades had a unique idea – to design and market a 4-wheel bicycle that everyone could enjoy. He appropriately named it the Rhoades Car... http://www.rhoadescar.com/rcar/index.shtml
The simple tension seeker (STS) by DMR Bikes should not really be called a chain tensioner , but rather a slack-remover. It's an incredibly simple solution for those looking to convert a bike with vertical dropouts for single speed use. DMR is a UK-based company that specializes in downhill, freeride, and dirt jump chain devices, and the STS reflects this design experience in this burly device. Installation is a 5-minute job (assuming you have already replaced your cassette with a cog, and shortened your chain as much as possible). Simply remove the skewer nut and slide the black aluminum mounting bracket onto the dropout. Then loosely bolt the stainless steel arm to the bracket and the derailleur hanger with two 5mm bolts. Replace the skewer nut. Rotate the cranks until the chain is at its tightest. (Very few chainrings and cogs are perfectly round.) Lift up on the arm so that the red pulley pushes the chain upward, removing the slack, and tighten the two 5mm bolts. That...
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