bicycles

If you're an avid rider of bikes, the rough part about traveling is not just going without your set of wheels for an extended period of time, but trying to transport them on a plane--risking damage to the frame and wheels. The AeroTech Evolution bike case seeks to change all that.

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The tricky thing about buying a bike (or anything else) for a kid is that there's a 99.9-percent certainty they'll outgrow it. The genius behind the Kilobike is that while they're between the ages of 6 and 12, the bike will grow with them.

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If a Segway and a foldable scooter got together, they might hope to conceive something like the YikeBike mini-farthing. The foldable electric bike resembles a sleek, futuristic upgrade of the old high-riding bicycles, and it can fold up for easy storage under a desk or in a cupboard.

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We've told you about bike-sharing programs before, but the Hybrid2 design by Chiyu Chen takes the idea one step further, by using the bikes to put power back in the system. The idea is to put "ultracapacitors" into the bikes that will harness and store the kinetic energy generated by pedaling and braking. Once you return the bike to its rental kiosk, the energy stored in the bike will be transferred to the city's smart grid, and used to help power hybrid buses.

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How do you make a bicycle that never needs lube, never leaves grease on your pants, and always delivers smooth pedaling? Simple: Ditch the chain.

For its new Soho commuter bike, Trek replaced greasy metal links with a dry belt. Unlike other attempts at such bikes, the Soho is silky smooth to pedal. And it’s the first to offer multiple speeds, using an eight-gear transmission inside the rear-wheel hub.

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Cave Junction, Oregon, was once, long ago, the center of a gold rush boom that, like so many booms, ultimately consumed its host. Prospectors mined the land around the towns in an ever-tightening circle, until the only gold left was below the saloons, assayers and burlesque halls. Those fell next. The towns were mined right out from under themselves—with no trace left of the old frontier burgs but scars in the earth.

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To some men, bicycles may look like the key to good health and a prosperous sex life—riding around all day keeps you fit and attractive; you can save that $4.50 a gallon of gas money for your date/girlfriend/boyfriend/house party; and you get to wear really, really tight clothes. But there’s a downside. Cycling can also cause genital numbness, erection problems and skin irritations in the groin area, a new report in the urology journal BJU International confirms, citing several medical studies over the last few years.

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