Originally Posted by
Kalindorfv
I have a Shimano chain for XT , 1x12 CN-8100 and the chain weare indicator enter if I push it with my finger at 0.5%. Is it time to change the chain or should I leave it until it fits freely, without being pressed?
Get out a ruler and measure the length of 24 pins (12 inches of original length). If it measures over 1/16" (1.6 mm) elongation, replace it. Chain checkers are notorious for their inaccuracies. Rulers are NEVER wrong.