>>1837572>talking from experience of all my bikes after 20 years of riding and working on thousands of bikes on a bike shopHave you measured the elongation on those chains and the km ridden and came to your conclusion that way? Did you control for all the variables? I don't really think that's possible to do as a bike shop mechanic. The best data I've seen on this is pic related (from this article:
https://cyclingtips.com/2019/12/the-best-bicycle-chain-durability-and-efficiency-tested/#8-9-10-11-12-speed), which controls for all the variables and shows newer chains lasting longer.
