I pull down on it kind of with some pressure and push up on it with some pressure. There is actually a weight spec of like 20 pounds or so. There is also a spec of how far it can be stretched and still be good, you measure between like 20 links. I don't know it off the top of my head. If it was an inexpensive chain that was put on from the factory then 16,000 is about right. Replace the sprockets when you replace the chain.