Shimano introduces "shift-by-wire" for high-end bicycles
Shimano, by far the world's leading manufacturer of bicycle components, has begun making the transition from cables to wires on human-powered bicycles. The company's new Di2 comes complete with two brake/shift levers, two spring-less derailleurs equipped with servo-motors, a 7.4-volt lithium ion battery pack along with a wiring harness. Claimed improvements include accurate shifts every time and reduced weight. That's right -- the new electronic shifter weighs less than the company's high-end manual equipment.
- Biggest automotive sales disappointments
- Fastest-depreciating cars in the United States
- Find and compare 2017 Models