I am hoping that the internal geared hub will be easier on the chain. The bike shop where we bought the bike did say that the chain requires more maintenance than my regular road bikes. My wife’s old e bike had a derailleur and hub drive instead of mid drive and I saw no difference to my bikes as far as maintenance. For my wife a 20 mile ride is good but with this new bike I’m hoping to get her up to my 35-40 mile rides. She only needs minimal assistance from the drive. She can go on three 15 mile rides before I charge it back up. I will see how that compares to her new Bosch mid drive bike.