Originally Posted by wildjim
Chains don't stretch they wear.
If you want to get technical. Chains DO stretch. Individual links, specifically pins, wear. The material that the chain is made out of does not elongate a measurable amount. But the chain as a whole gets longer.
stretch ( P ) Pronunciation Key (strch)
v. stretched, stretch·ing, stretch·es
v. tr.
To lengthen, widen, or distend.
The chain as a unit gets longer. Therefore, by definition, it stretches.