The Ottumwa Courier

AP National

December 18, 2013

Mass. high-tech startup hopes to change biking

CAMBRIDGE, Mass. (AP) — A Massachusetts startup is launching a new device that transforms almost any bicycle into an electric-hybrid vehicle using an app on a smartphone.

The device, called the Copenhagen Wheel, is installed as part of a rear hub of a bike wheel and is packed with a proprietary computer, batteries and sensors that monitor how hard a rider is pedaling and activate an onboard motor whenever support is needed. The device uses wireless connectivity to communicate with the biker's smartphone to track distance traveled and elevation gained, share with friends the number of calories burned and lock the wheel remotely as soon as the owner walks away from the bike.

"The motor integrates itself with the rider's motion very, very seamlessly," said Assaf Biderman, who co-invented the device at the Massachusetts Institute of Technology's SENSEable City Lab, where he is associate director. "It's almost like having a riding companion riding together with you, making the ride easier, simpler."

The combination of power from the Copenhagen Wheel and the cyclist's energy can make an average biker move "almost like a Tour-de-France-level athlete in your daily commute," said Biderman, who founded Cambridge, Mass.-based Superpedestrian Inc. that secured an exclusive license for the technology from MIT.

The Copenhagen Wheel packs sufficient power to propel a rider as fast as 60 kph (37.28 mph), but developers have put speed limits in software to meet local speed limits, effectively turning off the motor once the speed reaches 20 mph in the U.S. and 25 kilometers in Europe.

The concept was inspired by a simple question: "How can we get more people to cycle?" Biderman said.

The project received funding from the Italian ministry of the environment and office of the mayor of Copenhagen, a Danish city known as one of the most bicycle friendly locations in the world and whose tourism website says 55 percent of its residents bike 1.2 million kilometers (750,000 miles) every day.

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