A 500-watt bike made by Riese & Müller, a bicycle manufacturer based in Darmstadt, is currently undergoing the TÜV inspection process and is expected to be available in stores this summer. It will cost just under €4,000 ($5,440). And the power of the motor, paired with a healthy cyclist's legs, will enable riders to reach speeds of about 50 kilometers per hour (31 mph). "You have to be able to move with the traffic flows. It's only then that it makes sense," says the company's CEO Heiko Müller.
