I really like this graph because it helps visualizes scale. Sometimes, people knock e-bikes by saying they are less efficient than acoustic bikes. While that may be true, it’s another example of, “Don’t let perfect be the enemy of good.” As shown here, e-bikes are literally the 90% solution. I really don’t think it’s worth sweating the potential energy efficiency differences between e-bikes and acoustic bikes. What’s really important is reducing car usage.