My wife has joint problems similar to rheumatoid arthritis. She is able to ride a bike again thanks to the electric assist. We live on a hill and there is a one mile uphill grade to our house. I have trouble with it on a regular bike. There is no way my wife could get up it without the Pedego. She is out riding it right now and absolutely loves it. The customer service was exceptional and they made sure to get the right bike for her. Thank you so much!