A modern X ring chain sports 4 low drag contact points which are as
effective as your fork seals in separating external and internal
fluids... that means no amount of external oil (RED) can reach the
critical pin and roller junction behind the X ring to extend its
service life... consequently my definition of a worn out chain is
after the 3rd adjustment because that is undeniable evidence that the
factory installed grease is beginning to fail to lube the critical pin
roller junction hidden behind the X ring... the length of the chain is
growing because of this metal to metal wear... I can not call a chain
serviceable that is grinding metal... it's like saying that a dry
bearing that runs ruff is acceptable... the net result is another 2 to
3% drop in RWHP as more energy is lost grinding metal behind the X
ring...
effective as your fork seals in separating external and internal
fluids... that means no amount of external oil (RED) can reach the
critical pin and roller junction behind the X ring to extend its
service life... consequently my definition of a worn out chain is
after the 3rd adjustment because that is undeniable evidence that the
factory installed grease is beginning to fail to lube the critical pin
roller junction hidden behind the X ring... the length of the chain is
growing because of this metal to metal wear... I can not call a chain
serviceable that is grinding metal... it's like saying that a dry
bearing that runs ruff is acceptable... the net result is another 2 to
3% drop in RWHP as more energy is lost grinding metal behind the X
ring...