Just think about it. An 81 year old who needs an e-assist bike. wearing out a chain or drive train within months or in this case DAYS. Which is what you are suggestion. I am not suggesting you are NOT trying to help just I cannot agree with your lack of logic. The first Domane + 7 SLR loan...
Both bikes are just 12 months old or less. Your observations are wishful thinking and a simplistic explanation. You are stating the obvious where many such problems are found. Hopefully not on many if any high end bikes ridden by 81 year olds like me. Its also exptemly unlikley TREK would...
I had the same problem with a 2023 Domame + 7 SLR. TQ diagnostic system claimed no problem but the Control Panel was replaced under warranty. That fault followed soon after the chain had to be split several times due to increasing problems with chains coming off on TWO bikes. Trek had to...