Originally Posted by
jrickards
How do you determine the degree of chain wear/stretch? At what point do you determine that it is sufficiently worn/stretched to require replacement?
Use a ruler. If it's stretched more than 1/8" in 12 inches, it needs replacement. (unless you're following my "just let the whole drivetrain wear out together and replace the whole thing when performance gets bad" rule)
__________________
Work: the 8 hours that separates bike rides.