I kind of feel that way. With my 130 pounds the extra 20 from my bike is still light weight. And at 61 YO i know how to shift properly. But the pro is probably not paying so fast wearing is not a concern.Do you mean an E bike specific chain? Sounds a bit gimmicky to me. If a chain is strong enough for a pro racer with an FTP of 600w then it should have no problem being used by us mere mortals, e-bike or not shouldn't really matter.