Originally Posted by roccobike
I measure my chains in more than one location. The most variation I've ever seen is 0.1. That's total variation which includes chain stretch, tool error and operator error ( my ability to read it accurately).
I must be conservative, I replace my chains when they exceed 0.6.
i err on the side of replacing my chains too soon too and i use the best sachs/sedisport/sram chains.
ed rader