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Electric bikesGetting outdoors to ride a bike is not only beneficial exercise, the fresh air and scenery can be invigorating. If you find you need a little extra help to get up some of those hills, an electric bike could be the solution for you.Electric bikes are powered by a lithium ion battery, and they feature high speed brushless gear motors that take over when you need extra help. With 21 speeds, electric bikes offer all of the standard shifting and gears that you'd expect from a bicycle. When you need more power, simply shift into the assisted mode and off you'll go. Electric bikes have aluminum frames that are waterproof, and they come in a variety of colors. Entanglement theory psychology.