I predict that in the next few years, virtually all cyclists will have motors on their bikes. I think that you can get a better training effect with a motor than without it. Anyone who has difficulty accelerating a bike will benefit from an added boost from an electric motor. Consider an electric-assist motor if you have:
• Weak muscles.
• Any condition that requires you to limit your exercise, such as irregular heartbeats (check with your doctor).
• Lack of conditioning for any reason.
• Fear that you will not be able to keep up with other riders.
Electric-assist bikes can improve training programs for cyclists at all levels. They can usually be adapted for people with special needs or disabilities and can make it possible for people who have not ridden in years to get all of the benefits of cycling….